shorthand
type: AnnotationProperty

in_subset
type: AnnotationProperty

has_obo_format_version
type: AnnotationProperty

has_scope
type: AnnotationProperty

term replaced by
type: AnnotationProperty

definition
type: AnnotationProperty

has_synonym_type
type: AnnotationProperty

database_cross_reference
type: AnnotationProperty

has_alternative_id
type: AnnotationProperty

has_obo_namespace
type: AnnotationProperty

synonyms that should no longer be used
type: AnnotationProperty
sub property of: synonym_type_property
has_scope: has_related_synonym

synonyms that refers to the corresponding trait
type: AnnotationProperty
sub property of: synonym_type_property

synonym_type_property
type: AnnotationProperty

has_exact_synonym
type: AnnotationProperty

has_related_synonym
type: AnnotationProperty

has_narrow_synonym
type: AnnotationProperty

consider
type: AnnotationProperty

has_broad_synonym
type: AnnotationProperty

part of
type: ObjectProperty
type: TransitiveProperty
database_cross_reference: BFO:0000050
id: part_of
shorthand: part_of
has_obo_namespace: sponge

has part
type: ObjectProperty
shorthand: has_part

bearer of
type: ObjectProperty
domain: Class
  complement of: quality
range: Class
  complement of: Class
    union of: anatomical entity
    union of: chemical entity
    union of: biological_process

surrounded by
type: ObjectProperty
sub property of: topObjectProperty

variant of
type: ObjectProperty

results in formation of
type: ObjectProperty

develops_from
type: ObjectProperty
type: TransitiveProperty
database_cross_reference: RO:0002202
id: develops_from
shorthand: develops_from
has_obo_namespace: sponge
property chain axiom: part of

capable_of
type: ObjectProperty
database_cross_reference: RO:0002215
id: capable_of
shorthand: capable_of
has_obo_namespace: sponge

composed_of
type: ObjectProperty
id: composed_of
has_obo_namespace: sponge
sub property of: has part

continuous_with
type: ObjectProperty
creation date: 2011-04-22T07:30:35Z
created by: cjm
id: continuous_with
has_obo_namespace: sponge

echinates
type: ObjectProperty
id: echinates
has_related_synonym: protrudes from
has_obo_namespace: sponge

secreted_by
type: ObjectProperty
creation date: 2011-04-22T07:02:22Z
created by: cjm
id: secreted_by
has_obo_namespace: sponge

secretes
type: ObjectProperty
id: secretes
has_obo_namespace: sponge

surrounds
type: ObjectProperty
has_obo_namespace: sponge
id: surrounds

anatomical entity
type: Class
disjoint with: biological_process
disjoint with: quality
disjoint with: life cycle stage
definition: Biological entity that is either an individual member of a biological species or constitutes the structural organization of an individual member of a biological species.
id: CARO:0000000
has_obo_namespace: sponge

Axiom
annotated target: Biological entity that is either an individual member of a biological species or constitutes the structural organization of an individual member of a biological species.
database_cross_reference: CARO:MAH
annotated source: anatomical entity
annotated property: definition

anatomical structure
type: Class
subclass of: material anatomical entity
id: CARO:0000003
definition: Material anatomical entity that has inherent 3D shape and is generated by coordinated expression of the organism's own genome.
has_obo_namespace: sponge

Axiom
database_cross_reference: CARO:MAH
annotated target: Material anatomical entity that has inherent 3D shape and is generated by coordinated expression of the organism's own genome.
annotated source: anatomical structure
annotated property: definition

material anatomical entity
type: Class
subclass of: anatomical entity
disjoint with: immaterial anatomical entity
definition: Anatomical entity that has mass.
id: CARO:0000006
has_obo_namespace: sponge

Axiom
annotated target: Anatomical entity that has mass.
database_cross_reference: CARO:MAH
annotated source: material anatomical entity
annotated property: definition

anatomical system
type: Class
subclass of: anatomical group
subclass of: Restriction
  on property: part of
  some values from: aquiferous system
definition: Anatomical group that is has as its parts distinct anatomical structures interconnected by anatomical structures at a lower level of granularity.
id: CARO:0000011
has_obo_namespace: caro

Axiom
annotated target: Anatomical group that is has as its parts distinct anatomical structures interconnected by anatomical structures at a lower level of granularity.
database_cross_reference: CARO:MAH
database_cross_reference: FMA:7149
annotated source: anatomical system
annotated property: definition

multi-cellular organism
type: Class
subclass of: anatomical structure
definition: Anatomical structure that is an individual member of a species and consists of more than one cell.
id: CARO:0000012
has_obo_namespace: sponge

Axiom
annotated target: Anatomical structure that is an individual member of a species and consists of more than one cell.
database_cross_reference: CARO:MAH
annotated source: multi-cellular organism
annotated property: definition

cell
type: Class
subclass of: anatomical structure
definition: Anatomical structure that has as its parts a maximally connected cell compartment surrounded by a plasma membrane.
id: CARO:0000013
database_cross_reference: GO:0005623
has_obo_namespace: sponge

Axiom
annotated target: Anatomical structure that has as its parts a maximally connected cell compartment surrounded by a plasma membrane.
database_cross_reference: CARO:MAH
annotated source: cell
annotated property: definition

acellular anatomical structure
type: Class
subclass of: anatomical structure
definition: Anatomical structure that consists of cell parts and cell substances and together does not constitute a cell or a tissue.
id: CARO:0000040
has_obo_namespace: sponge

Axiom
annotated target: Anatomical structure that consists of cell parts and cell substances and together does not constitute a cell or a tissue.
database_cross_reference: CARO:MAH
annotated source: acellular anatomical structure
annotated property: definition

portion of tissue
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: surrounds
  some values from: choanochamber
definition: Anatomical structure, that consists of similar cells and intercellular matrix, aggregated according to genetically determined spatial relationships.
id: CARO:0000043
has_obo_namespace: sponge

Axiom
annotated target: Anatomical structure, that consists of similar cells and intercellular matrix, aggregated according to genetically determined spatial relationships.
database_cross_reference: CARO:MAH
annotated source: portion of tissue
annotated property: definition

anatomical group
type: Class
subclass of: anatomical structure
definition: Anatomical structure consisting of at least two non-overlapping organs, multi-tissue aggregates or portion of tissues or cells of different types that does not constitute an organism, organ, multi-tissue aggregate, or portion of tissue.
id: CARO:0000054
has_obo_namespace: sponge

Axiom
annotated target: Anatomical structure consisting of at least two non-overlapping organs, multi-tissue aggregates or portion of tissues or cells of different types that does not constitute an organism, organ, multi-tissue aggregate, or portion of tissue.
database_cross_reference: CARO:MAH
annotated source: anatomical group
annotated property: definition

chemical entity
type: Class

calcium carbonate
type: Class
subclass of: chemical entity

calcite
type: Class
subclass of: calcium carbonate

aragonite
type: Class
subclass of: chemical entity

biogenic silica
type: Class
subclass of: chemical entity

spermatocyte
type: Class
subclass of: germ line cell
definition: A male germ cell that develops from spermatogonia. The euploid primary spermatocytes undergo meiosis and give rise to the haploid secondary spermatocytes which in turn give rise to spermatids.
id: CL:0000017
has_obo_namespace: cell

Axiom
annotated target: A male germ cell that develops from spermatogonia. The euploid primary spermatocytes undergo meiosis and give rise to the haploid secondary spermatocytes which in turn give rise to spermatids.
database_cross_reference: GOC:tfm
database_cross_reference: MESH:A.05.360.490.890.880
annotated source: spermatocyte
annotated property: definition

oocyte
type: Class
subclass of: germ line cell
definition: A female germ cell that has entered meiosis.
id: CL:0000023
has_obo_namespace: cell

Axiom
annotated target: A female germ cell that has entered meiosis.
database_cross_reference: GOC:tfm
database_cross_reference: ISBN:0721662544
annotated source: oocyte
annotated property: definition

germ line cell
type: Class
subclass of: cell
subclass of: Restriction
  on property: capable_of
  some values from: reproductive process
definition: A cell that is within the developmental lineage of gametes and is able to pass along its genetic material to offspring.
id: CL:0000039
comment: Originally this term had some plant germ line cell children.
has_obo_namespace: cell

Axiom
annotated target: A cell that is within the developmental lineage of gametes and is able to pass along its genetic material to offspring.
database_cross_reference: GOC:tfm
database_cross_reference: ISBN:0721662544
annotated source: germ line cell
annotated property: definition

reproduction
type: Class
subclass of: reproductive process
id: GO:0000003
has_alternative_id: GO:0019952
has_alternative_id: GO:0050876
definition: The production by an organism of new individuals that contain some portion of their genetic material inherited from that organism.
database_cross_reference: Wikipedia:Reproduction
has_obo_namespace: biological_process
has_exact_synonym: reproductive physiological process

Axiom
database_cross_reference: GOC:go_curators
database_cross_reference: GOC:isa_complete
database_cross_reference: ISBN:0198506732
annotated target: The production by an organism of new individuals that contain some portion of their genetic material inherited from that organism.
annotated source: reproduction
annotated property: definition

phagocytosis
type: Class
subclass of: biological_process
definition: An endocytosis process that results in the engulfment of external particulate material by phagocytes. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles.
id: GO:0006909
database_cross_reference: Wikipedia:Phagocytosis
has_obo_namespace: biological_process

Axiom
annotated target: An endocytosis process that results in the engulfment of external particulate material by phagocytes. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles.
database_cross_reference: ISBN:0198506732
annotated source: phagocytosis
annotated property: definition

biological_process
type: Class
definition: Any process specifically pertinent to the functioning of integrated living units: cells, tissues, organs, and organisms. A process is a collection of molecular events with a defined beginning and end.
has_alternative_id: GO:0000004
has_alternative_id: GO:0007582
id: GO:0008150
database_cross_reference: Wikipedia:Biological_process
has_exact_synonym: biological process
has_narrow_synonym: biological process unknown
has_obo_namespace: biological_process
has_exact_synonym: physiological process

Axiom
annotated target: Any process specifically pertinent to the functioning of integrated living units: cells, tissues, organs, and organisms. A process is a collection of molecular events with a defined beginning and end.
database_cross_reference: GOC:go_curators
database_cross_reference: GOC:isa_complete
annotated source: biological_process
annotated property: definition

flagellum
type: Class
subclass of: cell component
subclass of: Restriction
  on property: part of
  some values from: cell

reproductive process
type: Class
subclass of: biological_process
subclass of: Restriction
  on property: part of
  some values from: reproduction
definition: A biological process that directly contributes to the process of producing new individuals by one or two organisms. The new individuals inherit some proportion of their genetic material from the parent or parents.
id: GO:0022414
has_obo_namespace: biological_process

Axiom
annotated target: A biological process that directly contributes to the process of producing new individuals by one or two organisms. The new individuals inherit some proportion of their genetic material from the parent or parents.
database_cross_reference: GOC:dph
database_cross_reference: GOC:isa_complete
annotated source: reproductive process
annotated property: definition

quality
type: Class
definition: A dependent entity that inheres in a bearer by virtue of how the bearer is related to other entities.
id: PATO:0000001
has_alternative_id: PATO:0000072
has_obo_namespace: sponge
has_exact_synonym: trait

Axiom
annotated target: A dependent entity that inheres in a bearer by virtue of how the bearer is related to other entities.
database_cross_reference: PATOC:GVG
annotated property: definition
annotated source: quality

morphology
type: Class
subclass of: quality
definition: A quality of a single physical entity inhering in the bearer by virtue of the bearer's size or shape or structure.
id: PATO:0000051
has_obo_namespace: sponge
in_subset: attribute slim

Axiom
annotated target: A quality of a single physical entity inhering in the bearer by virtue of the bearer's size or shape or structure.
database_cross_reference: PATOC:GVG
annotated property: definition
annotated source: morphology

sponge cell
type: Class
subclass of: cell
subclass of: Restriction
  on property: part of
  some values from: sponge
creation date: 2011-04-22T06:40:57Z
id: PORO:0000000
created by: cjm
has_obo_namespace: sponge

sponge
type: Class
subclass of: multi-cellular organism
creation date: 2011-04-22T06:42:26Z
id: PORO:0000001
definition: Sponge bodies consist of jelly-like mesohyl sandwiched between two thin layers of cells. While all animals have unspecialized cells that can transform into specialized cells, sponges are unique in having some specialized cells that can transform into other types, often migrating between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes, and the shapes of their bodies are adapted to maximize the efficiency of the water flow. All are sessile aquatic animals and, although there are freshwater species, the great majority are marine (salt water) species, ranging from tidal zones to depths exceeding 8,800 metres (5.5 mi)
created by: cjm
has_obo_namespace: sponge

Axiom
annotated target: Sponge bodies consist of jelly-like mesohyl sandwiched between two thin layers of cells. While all animals have unspecialized cells that can transform into specialized cells, sponges are unique in having some specialized cells that can transform into other types, often migrating between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes, and the shapes of their bodies are adapted to maximize the efficiency of the water flow. All are sessile aquatic animals and, although there are freshwater species, the great majority are marine (salt water) species, ranging from tidal zones to depths exceeding 8,800 metres (5.5 mi)
database_cross_reference: Wikipedia:Sponge
annotated property: definition
annotated source: sponge

mesohyl
type: Class
subclass of: portion of tissue
subclass of: Restriction
  on property: adjacent to
  some values from: pinacoderm
subclass of: Restriction
  on property: adjacent to
  some values from: choanoderm
creation date: 2011-04-22T06:42:59Z
id: PORO:0000002
created by: cjm
definition: gelatinous matrix within a sponge. It fills the space between the external pinacoderm and the internal choanoderm. The mesohyl resembles a type of connective tissue and contains several amoeboid cells such as amebocytes, as well as fibrils and skeletal elements. For hundreds of years, it has been largely accepted that sponges lack true tissue, but it is currently debated as to whether mesohyl and pinacoderm layers are in fact tissues. The mesohyl is composed of the following main elements: collagen, fibronectin-like molecules, galectin, and a minor component, dermatopontin. These polypeptides form the extracellular matrix which provides the platform for specific cell adhesion as well as for signal transduction and cellular growth.
has_related_synonym: mesenchyme
has_related_synonym: mesoglea
has_obo_namespace: sponge

Axiom
annotated target: mesenchyme
annotated source: mesohyl
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
database_cross_reference: Wikipedia:Mesohyl
annotated target: gelatinous matrix within a sponge. It fills the space between the external pinacoderm and the internal choanoderm. The mesohyl resembles a type of connective tissue and contains several amoeboid cells such as amebocytes, as well as fibrils and skeletal elements. For hundreds of years, it has been largely accepted that sponges lack true tissue, but it is currently debated as to whether mesohyl and pinacoderm layers are in fact tissues. The mesohyl is composed of the following main elements: collagen, fibronectin-like molecules, galectin, and a minor component, dermatopontin. These polypeptides form the extracellular matrix which provides the platform for specific cell adhesion as well as for signal transduction and cellular growth.
annotated property: definition
annotated source: mesohyl

choanocyte
type: Class
subclass of: flagellated cell
subclass of: Restriction
  on property: part of
  some values from: spongocoel lining
creation date: 2011-04-22T06:47:33Z
definition: A cell that lines the interior of Asconoid, syconoid and leuconoid body type sponges that contain a central flagellum surrounded by a collar of microvilli which are connected by a thin membrane. The choanocyte is ovoid, with one end adjacent to the mesohyl (in some species). It is the closest family member to the free-living ancestor called choanoflagellate. The flagellae beat regularly, creating a water flow across the microvilli which can then filter nutrients and other food from the water taken from the collar of the sponge. Food particles are then phagocytosed by the cell. Choanocytes are found dotting the surface of the spongocoel in asconoid sponges and the radial canals in syconoid sponges, but they comprise entirely the chambers in leuconoid sponges. By cooperatively moving their flagella, choanocytes generate a flow of water through the sponges pores, into the spongocoel, and out through the osculum. This improves both respiratory and digestive functions for the sponge, pulling in oxygen and nutrients and allowing a rapid expulsion of carbon dioxide and other waste products. Although all cells in a sponge are capable of living on their own, choanocytes carry out most of the sponge's ingestion, passing digested materials to the amoebocytes for delivery to other cells.
id: PORO:0000003
comment: They bear more than a passing resemblance to Choanoflagellates, and demonstrate key steps in the evolution of animals. Scientist Nicole King helped to establish the distinction.[1] DNA sequencing indicates that multicellular choanoflagellates and poriferans are sister groups, both descended from the same eukaryotic clade. One can see modern choanoflagellates living in small colonies, illustrating the evolution of sponges by analogy. More complex animals, notably the cnidarians, possess cells whose structures are clearly derived from choanocytes, demonstrating their historical ties to phylum porifera.
created by: cjm
has_related_synonym: collar cell
has_obo_namespace: sponge

Axiom
annotated target: A cell that lines the interior of Asconoid, syconoid and leuconoid body type sponges that contain a central flagellum surrounded by a collar of microvilli which are connected by a thin membrane. The choanocyte is ovoid, with one end adjacent to the mesohyl (in some species). It is the closest family member to the free-living ancestor called choanoflagellate. The flagellae beat regularly, creating a water flow across the microvilli which can then filter nutrients and other food from the water taken from the collar of the sponge. Food particles are then phagocytosed by the cell. Choanocytes are found dotting the surface of the spongocoel in asconoid sponges and the radial canals in syconoid sponges, but they comprise entirely the chambers in leuconoid sponges. By cooperatively moving their flagella, choanocytes generate a flow of water through the sponges pores, into the spongocoel, and out through the osculum. This improves both respiratory and digestive functions for the sponge, pulling in oxygen and nutrients and allowing a rapid expulsion of carbon dioxide and other waste products. Although all cells in a sponge are capable of living on their own, choanocytes carry out most of the sponge's ingestion, passing digested materials to the amoebocytes for delivery to other cells.
database_cross_reference: ISBN:0030229073
database_cross_reference: Wikipedia:Choanocyte
annotated property: definition
annotated source: choanocyte

epitheloid monolayer of cells
type: Class
subclass of: portion of tissue
creation date: 2011-04-22T06:50:20Z
id: PORO:0000004
comment: Sponge cells adhere to form tissue-like layers, but a true epithelial cell layer, characterized by aligned cell polarity, belt-form junctions and underlying basal lamina, is thought to be a eumetazoan innovation. Amphimedon possesses all the main components of the Par, Crumbs and Discs Large (Dlg) complexes, a set of interacting proteins that are largely metazoan-specific and determine polarity in epithelial cells[http://www.nature.com/nature/journal/v466/n7307/full/nature09201.htm]
created by: cjm
has_obo_namespace: sponge

lophocyte
type: Class
subclass of: collencyte
creation date: 2011-04-22T06:52:10Z
id: PORO:0000005
definition: amoeba-like cells that move slowly through the mesohyl and secrete collagen fibres.
created by: cjm
has_obo_namespace: sponge

rhabdiferous cell
type: Class
subclass of: sponge cell
creation date: 2011-04-22T06:53:00Z
definition: Large cell with numerous rod-like inclu sions parallel to the long axis of the cell containing acid mucopolysaccharides
id: PORO:0000007
created by: cjm
comment: secrete polysaccharides that also form part of the mesohyl
has_obo_namespace: sponge

Axiom
annotated target: Large cell with numerous rod-like inclu sions parallel to the long axis of the cell containing acid mucopolysaccharides
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhabdiferous cell

sclerocyte
type: Class
subclass of: secretory cell
subclass of: Restriction
  on property: secretes
  some values from: spicule
subclass of: Restriction
  on property: develops_from
  some values from: archaeocyte
creation date: 2011-04-22T06:54:11Z
id: PORO:0000011
created by: cjm
comment: compare: "Cell involved in spicule secretion. In Demospon- ges, with intracellular secretion, sclerocytes are characterized by numerous mitochondria and the presence of spicule-axial filaments. In Calcarea, where secretion is extracellular, sclerocytes have septate junctions between them (sc in figure)." [http://www.portol.org/thesaurus]
definition: spicule secreting cells, found in sponges. They secrete calcareous or siliceous spicules which are found in the mesohyl layer of sponges. The sclerocytes produce spicules via formation of a cellular triad
has_obo_namespace: sponge

Axiom
database_cross_reference: Wikipedia:Sclerocyte
annotated target: spicule secreting cells, found in sponges. They secrete calcareous or siliceous spicules which are found in the mesohyl layer of sponges. The sclerocytes produce spicules via formation of a cellular triad
annotated property: definition
annotated source: sclerocyte

secretory cell
type: Class
subclass of: sponge cell
creation date: 2011-04-22T06:55:19Z
id: PORO:0000012
created by: cjm
has_obo_namespace: sponge

spongocyte
type: Class
subclass of: secretory cell
subclass of: Restriction
  on property: secretes
  some values from: spongin
creation date: 2011-04-22T06:55:40Z
definition: In addition to or instead of sclerocytes, demosponges have spongocytes that secrete a form of collagen that polymerizes into spongin, a thick fibrous material that stiffens the mesohyl.
id: PORO:0000013
created by: cjm
has_obo_namespace: sponge

myocyte
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: part of
  some values from: mesohyl
subclass of: Restriction
  on property: part of
  some values from: aquiferous system
creation date: 2011-04-22T06:56:33Z
id: PORO:0000014
created by: cjm
definition: conduct signals and cause parts of the animal to contract. They are assumed to regulate the flow of water by increasing or decreasing the diameter of these openings to the aquiferous system.
has_related_synonym: muscle cell
has_obo_namespace: sponge

gray cell
type: Class
subclass of: sponge cell
creation date: 2011-04-22T06:57:32Z
id: PORO:0000015
definition: cells that acts as sponges' equivalent of an immune system.
created by: cjm
has_related_synonym: immune cell
has_obo_namespace: sponge
comment: TODO: Merge with glycocyte?

archaeocyte
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: capable_of
  some values from: phagocytosis
creation date: 2011-04-22T06:58:18Z
id: PORO:0000016
definition: amoeba-like large cells with large nuclei that are totipotent. They also have important roles in feeding and in clearing debris that block the ostia.
has_related_synonym: amoebocyte
created by: cjm
has_obo_namespace: sponge

Axiom
database_cross_reference: ISBN:0030229073
annotated target: amoeba-like large cells with large nuclei that are totipotent. They also have important roles in feeding and in clearing debris that block the ostia.
annotated property: definition
annotated source: archaeocyte

spicule
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: secreted_by
  some values from: sclerocyte
subclass of: Restriction
  on property: part of
  some values from: mesohyl
creation date: 2011-04-22T06:59:28Z
definition: A component of the mineral skeleton, typically composed of silica or calcium carbonate[portol]. A structural element that provides structural support and deter predators. Large spicules, visible to the naked eye are referred to as megascleres, while smaller, microscopic ones are termed microscleres. The meshing of many spicules serves as the sponge’s skeleton. Spicules are formed by sclerocytes, which are derived from archaeocytes. The sclerocyte begins with an organic filament, and adds silica to it. Spicules are generally elongated at a rate of 1-10 μm per hour. Once the spicule reaches a certain length it protrudes from the sclerocyte cell body, but remains within the cell’s membrane. On occasion, sclerocytes may begin a second spicule while the first is still in progress.
id: PORO:0000017
created by: cjm
comment: located primarily in the mesohyl, but some project through the pinacoderm (Barnes).
has_obo_namespace: sponge

Axiom
annotated target: A component of the mineral skeleton, typically composed of silica or calcium carbonate[portol]. A structural element that provides structural support and deter predators. Large spicules, visible to the naked eye are referred to as megascleres, while smaller, microscopic ones are termed microscleres. The meshing of many spicules serves as the sponge’s skeleton. Spicules are formed by sclerocytes, which are derived from archaeocytes. The sclerocyte begins with an organic filament, and adds silica to it. Spicules are generally elongated at a rate of 1-10 μm per hour. Once the spicule reaches a certain length it protrudes from the sclerocyte cell body, but remains within the cell’s membrane. On occasion, sclerocytes may begin a second spicule while the first is still in progress.
database_cross_reference: Wikipedia:Sponge_spicule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spicule

osculum
type: Class
subclass of: immaterial anatomical entity
subclass of: Restriction
  on property: continuous_with
  some values from: spongeocoel
creation date: 2011-04-22T07:03:32Z
id: PORO:0000018
definition: an excretory structure in the living sponge, a large opening to the outside through which the current of water exits after passing through the spongocoel. Wastes diffuse into the water and the water exits through the osculum at a velocity of nearly 8.4 cm/second, carrying away with it the sponge's wastes. The size of the osculum is regulated by the myocyte. Its size, in turn, determines the amount of water flowing through the sponge.
created by: cjm
has_obo_namespace: sponge

Axiom
database_cross_reference: Wikipedia:Osculum
annotated target: an excretory structure in the living sponge, a large opening to the outside through which the current of water exits after passing through the spongocoel. Wastes diffuse into the water and the water exits through the osculum at a velocity of nearly 8.4 cm/second, carrying away with it the sponge's wastes. The size of the osculum is regulated by the myocyte. Its size, in turn, determines the amount of water flowing through the sponge.
annotated property: definition
annotated source: osculum

immaterial anatomical entity
type: Class
subclass of: anatomical entity
creation date: 2011-04-22T07:04:50Z
id: PORO:0000019
created by: cjm
has_obo_namespace: sponge

spongeocoel
type: Class
subclass of: immaterial anatomical entity
creation date: 2011-04-22T07:05:15Z
comment: ATRIUM: "Preoscular cavity. This term is used specifically to designate the central exhalant cavity" [http://www.portol.org/thesaurus]
id: PORO:0000020
has_alternative_id: PORO:0000037
has_related_synonym: atrium
created by: cjm
has_exact_synonym: cloaca
has_exact_synonym: gastal cavity
definition: large, central cavity of sponges. Water enters the spongocoel through hundreds of tiny pores (Ostia) and exits through the larger opening (osculum). Depending on the body plan of the sponge (which can be asconoid, syconoid, or leuconoid), the spongocoel could be a simple interior space of the sponge or a complexly branched inner structure. Regardless of body plan or class, the spongocoel is lined with choanocytes, which have flagella that push water through the spongocoel, creating a current.
has_obo_namespace: sponge

Axiom
annotated target: atrium
database_cross_reference: http://www.portol.org/thesaurus
annotated source: spongeocoel
annotated property: has_related_synonym

Axiom
annotated target: cloaca
database_cross_reference: http://www.portol.org/thesaurus
annotated source: spongeocoel
annotated property: has_exact_synonym

Axiom
annotated target: gastal cavity
database_cross_reference: http://www.portol.org/thesaurus
annotated source: spongeocoel
annotated property: has_exact_synonym

ostium
type: Class
subclass of: pore
creation date: 2011-04-22T07:07:50Z
id: PORO:0000021
has_alternative_id: PORO:0000036
created by: cjm
has_exact_synonym: incurrent pore
has_obo_namespace: sponge
definition: Any opening in the exopinacoderm through which water enters the sponge.

spongocoel lining
type: Class
subclass of: Restriction
  on property: part of
  some values from: spongeocoel
creation date: 2011-04-22T07:09:08Z
id: PORO:0000022
created by: cjm
has_obo_namespace: sponge

pinacocyte
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: part of
  some values from: pinacoderm
creation date: 2011-04-22T07:11:56Z
id: PORO:0000023
created by: cjm
definition: flat cells found on the outermost layer of sponges. They can expand and contract to slightly alter the size of the sponge, and can also produce collagen. Delimits the sponge from the external milieu and always only in a layer one-cell deep
has_obo_namespace: sponge

Axiom
database_cross_reference: Wikipedia:Pinacocyte
annotated target: flat cells found on the outermost layer of sponges. They can expand and contract to slightly alter the size of the sponge, and can also produce collagen. Delimits the sponge from the external milieu and always only in a layer one-cell deep
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pinacocyte

prosopyle
type: Class
subclass of: pore
subclass of: Restriction
  on property: continuous_with
  some values from: choanocyte-lined chamber
subclass of: Restriction
  on property: part of
  some values from: inhalant canal
creation date: 2011-04-22T08:35:40Z
comment: Compare: "Opening of an inhalant canal into a choanocyte chamber (pro in figure)." [http://www.portol.org/thesaurus]
id: PORO:0000024
definition: a pore through which water is drawn from the outside into one of the saclike chambers formed by the evagination of the body wall.
created by: cjm
has_obo_namespace: sponge

choanocyte-lined chamber
type: Class
subclass of: canal
subclass of: chamber
creation date: 2011-04-22T08:36:55Z
definition: Any cavity lined by choanocytes and located between inhalant and exhalant systems[portol]. either the choanocyte-lined radial canal in syconoid, or the choanocyte-lined filter chamber in leuconoid[cjm].
id: PORO:0000025
created by: cjm
has_obo_namespace: sponge

asconoid sponge
type: Class
subclass of: sponge
creation date: 2011-04-22T07:14:19Z
definition: Asconoid is one of three possible body plans for sponges, which form the phylum Porifera in kingdom Animalia and subkingdom Parazoa which means that they do not have a definite body shape. The asconoid body plan is characterized by a stalk-like spongocoel surrounded by a single layer of choanocytes. These choanocytes are cells that have flagella, and the flagella beat to push water through the spongocoel, creating a current. At somewhat regular intervals along the lining of the spongocoel are openings called ostia (singular, ostium). These protrude through the outer layer of the sponge (somewhat like an epidermis, but not entirely like it, since this terminology implies germ layers, which sponges do not have). Finally, at the top of the sponge is the osculum, which is the final exit for water circulating through the sponge. This single layer of choanocytes limits the size of asconoids, with the largest having a diameter of only 1 mm. This is due to the surface area : mass ratio which would not allow an asconoid sponge of larger size sufficient nutrition.
id: PORO:0000026
created by: cjm
has_obo_namespace: sponge

Axiom
annotated target: Asconoid is one of three possible body plans for sponges, which form the phylum Porifera in kingdom Animalia and subkingdom Parazoa which means that they do not have a definite body shape. The asconoid body plan is characterized by a stalk-like spongocoel surrounded by a single layer of choanocytes. These choanocytes are cells that have flagella, and the flagella beat to push water through the spongocoel, creating a current. At somewhat regular intervals along the lining of the spongocoel are openings called ostia (singular, ostium). These protrude through the outer layer of the sponge (somewhat like an epidermis, but not entirely like it, since this terminology implies germ layers, which sponges do not have). Finally, at the top of the sponge is the osculum, which is the final exit for water circulating through the sponge. This single layer of choanocytes limits the size of asconoids, with the largest having a diameter of only 1 mm. This is due to the surface area : mass ratio which would not allow an asconoid sponge of larger size sufficient nutrition.
database_cross_reference: Wikipedia:Asconoid
annotated property: definition
annotated source: asconoid sponge

syconoid sponge
type: Class
subclass of: sponge
creation date: 2011-04-22T07:15:05Z
id: PORO:0000027
definition: Sponge in which the body wall is pleated. The inner pockets of the pleats are lined with choanocytes, which connect to the outer pockets of the pleats by ostia. This increase in the number of choanocytes and hence in pumping capacity enables syconoid sponges to grow up to a few centimeters in diameter
created by: cjm
has_obo_namespace: sponge

Axiom
annotated target: Sponge in which the body wall is pleated. The inner pockets of the pleats are lined with choanocytes, which connect to the outer pockets of the pleats by ostia. This increase in the number of choanocytes and hence in pumping capacity enables syconoid sponges to grow up to a few centimeters in diameter
database_cross_reference: Wikipedia:Sea_sponge
annotated property: definition
annotated source: syconoid sponge

leuconoid sponge
type: Class
subclass of: sponge
creation date: 2011-04-22T07:15:41Z
id: PORO:0000028
definition: The "leuconid" pattern boosts pumping capacity further by filling the interior almost completely with mesohyl that contains a network of chambers lined with choanocytes and connected to each other and to the water intakes and outlet by tubes. Leuconid sponges grow to over 1 metre (3.3 ft) in diameter, and the fact that growth in any direction increases the number of choanocyte chambers enables them to take a wider range of forms, for example "encrusting" sponges whose shapes follow those of the surfaces to which they attach. All freshwater and most shallow-water marine sponges have leuconid bodies. The networks of water passages in glass sponges are similar to the leuconid structure.
created by: cjm
has_obo_namespace: sponge

Axiom
annotated target: The "leuconid" pattern boosts pumping capacity further by filling the interior almost completely with mesohyl that contains a network of chambers lined with choanocytes and connected to each other and to the water intakes and outlet by tubes. Leuconid sponges grow to over 1 metre (3.3 ft) in diameter, and the fact that growth in any direction increases the number of choanocyte chambers enables them to take a wider range of forms, for example "encrusting" sponges whose shapes follow those of the surfaces to which they attach. All freshwater and most shallow-water marine sponges have leuconid bodies. The networks of water passages in glass sponges are similar to the leuconid structure.
database_cross_reference: Wikipedia:Sea_sponge
annotated property: definition
annotated source: leuconoid sponge

spongin
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: skeleton
subclass of: Restriction
  on property: secreted_by
  some values from: spongocyte
creation date: 2011-04-22T07:17:56Z
id: PORO:0000029
definition: Skeletal substance in Demospongiae made up of collagen microfibrils of ~10 fim diameter[portol]. a modified type of collagen protein, forms the fibrous skeleton of most organisms among the phylum Porifera, the sponges. Spongin gives a sponge its flexibility. True spongin is found only in members of the class Demospongiae
created by: cjm
has_related_synonym: collagen
has_obo_namespace: sponge

Axiom
annotated target: Skeletal substance in Demospongiae made up of collagen microfibrils of ~10 fim diameter[portol]. a modified type of collagen protein, forms the fibrous skeleton of most organisms among the phylum Porifera, the sponges. Spongin gives a sponge its flexibility. True spongin is found only in members of the class Demospongiae
database_cross_reference: Wikipedia:Spongin
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spongin

calcareous spicule
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: composed_of
    some values from: calcium carbonate
subclass of: spicule
subclass of: Restriction
  on property: composed_of
  some values from: calcium carbonate
disjoint with: siliceous spicule
creation date: 2011-04-22T07:20:56Z
id: PORO:0000030
created by: cjm
has_obo_namespace: sponge
definition: A spicule composed largely of calcite having a radiate form, the number of rays being either two (diactine), three (triactine), or four (tetractine).

siliceous spicule
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: has part
    some values from: biogenic silica
subclass of: spicule
subclass of: Restriction
  on property: has part
  some values from: biogenic silica
creation date: 2011-04-22T07:21:12Z
id: PORO:0000031
created by: cjm
has_obo_namespace: sponge

spongin spicule
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: composed_of
    some values from: spongin
subclass of: spicule
subclass of: Restriction
  on property: composed_of
  some values from: spongin
creation date: 2011-04-22T07:21:16Z
id: PORO:0000032
created by: cjm
has_obo_namespace: sponge

calcium carbonate exoskeleton
type: Class
equivalent class: Class
  intersection of: skeleton
  intersection of: Restriction
    on property: composed_of
    some values from: calcium carbonate
subclass of: acellular anatomical structure
subclass of: skeleton
subclass of: Restriction
  on property: composed_of
  some values from: calcium carbonate
creation date: 2011-04-22T07:22:22Z
id: PORO:0000033
created by: cjm
has_obo_namespace: sponge

trab
type: Class
subclass of: acellular anatomical structure
creation date: 2011-04-22T07:25:52Z
definition: A trab is structural element within a sponge formed by the fusion of dendroclones. In the Anthaspidellidae, when spicules (usually dendroclones) connect at their tips to form a ladder-like structure, trabs may be formed.[1] Oxeas are sometimes employed in the central rod.[1][2] Trabs have a feather-like structure, or may form rods.[1][3] Trabs are usually regularly spaced, usually at sub-millimetric intervals.[1] Further dendroclones may interconnect adjacent trabs, forming ladder-like structures
id: PORO:0000034
created by: cjm
has_obo_namespace: sponge

Axiom
annotated target: A trab is structural element within a sponge formed by the fusion of dendroclones. In the Anthaspidellidae, when spicules (usually dendroclones) connect at their tips to form a ladder-like structure, trabs may be formed.[1] Oxeas are sometimes employed in the central rod.[1][2] Trabs have a feather-like structure, or may form rods.[1][3] Trabs are usually regularly spaced, usually at sub-millimetric intervals.[1] Further dendroclones may interconnect adjacent trabs, forming ladder-like structures
database_cross_reference: Wikipedia:Trab
annotated property: definition
annotated source: trab

pore
type: Class
subclass of: immaterial anatomical entity
creation date: 2011-04-22T07:29:00Z
id: PORO:0000035
created by: cjm
has_obo_namespace: sponge

dermal pore
type: Class
subclass of: pore
subclass of: Restriction
  on property: continuous_with
  some values from: incurrent canal
creation date: 2011-04-22T07:31:20Z
comment: In syconoid sponge, water passes through dermal pores to the incurrent canal and through the prosopyle to the choanocyte-lined radial canal.
id: PORO:0000038
created by: cjm
has_obo_namespace: sponge

canal
type: Class
subclass of: anatomical structure
creation date: 2011-04-22T07:31:48Z
id: PORO:0000039
created by: cjm
has_obo_namespace: sponge

incurrent canal
type: Class
subclass of: canal
subclass of: Restriction
  on property: continuous_with
  some values from: prosopyle
creation date: 2011-04-22T07:31:56Z
id: PORO:0000040
created by: cjm
has_obo_namespace: sponge

flagellated canal
type: Class
equivalent class: Class
  intersection of: canal
  intersection of: Restriction
    on property: has part
    some values from: flagellated cell
subclass of: canal
subclass of: Restriction
  on property: has part
  some values from: flagellated cell
creation date: 2011-04-22T07:32:19Z
id: PORO:0000041
created by: cjm
has_obo_namespace: sponge

flagellated chamber
type: Class
subclass of: chamber
creation date: 2011-04-22T07:32:43Z
id: PORO:0000042
created by: cjm
has_obo_namespace: sponge

pinacoderm
type: Class
subclass of: epitheloid monolayer of cells
subclass of: sponge surface
subclass of: Restriction
  on property: composed_of
  some values from: pinacocyte
creation date: 2011-04-22T07:33:24Z
id: PORO:0000043
definition: The pinacoderm is the outer most layer of cells (pinacocytes) in the phylum Porifera (sponges), similar to the epidermis in other organisms. The pinacocytes are on the external surface of the sponge body and characterized as an epithelial layer of flattened cells.
created by: cjm
comment: compare with: "Surface lined by pinacocytes (ex and en in figure)." [http://www.portol.org/thesaurus]
has_obo_namespace: sponge

Axiom
annotated target: The pinacoderm is the outer most layer of cells (pinacocytes) in the phylum Porifera (sponges), similar to the epidermis in other organisms. The pinacocytes are on the external surface of the sponge body and characterized as an epithelial layer of flattened cells.
database_cross_reference: Wikipedia:Pinacoderm
annotated property: definition
annotated source: pinacoderm

porocyte
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: develops_from
  some values from: pinacocyte
subclass of: Restriction
  on property: part of
  some values from: pinacoderm
creation date: 2011-04-22T07:38:18Z
id: PORO:0000044
definition: cell that surrounds a pore (ostium). In an asconoid sponge, water enters the sponge through the porocytes, passes directly to the choanocyte-lined spongocoel, and then out of the sponge through the osculum.
created by: cjm
has_obo_namespace: sponge

Axiom
database_cross_reference: UBERON:cjm
annotated target: cell that surrounds a pore (ostium). In an asconoid sponge, water enters the sponge through the porocytes, passes directly to the choanocyte-lined spongocoel, and then out of the sponge through the osculum.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: porocyte

spicule ray
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: spicule
creation date: 2011-04-22T08:23:20Z
id: PORO:0000045
created by: cjm
has_obo_namespace: sponge
disjoint union of: actine ray
disjoint union of: clad
disjoint union of: rhabd

apopyle
type: Class
subclass of: pore
creation date: 2011-04-22T08:45:54Z
id: PORO:0000046
definition: a pore in each of the saclike chambers formed by the evagination of the body wall, through which water passes into the excurrent canals.
created by: cjm
has_obo_namespace: sponge

Axiom
annotated target: a pore in each of the saclike chambers formed by the evagination of the body wall, through which water passes into the excurrent canals.
database_cross_reference: http:dictionary.reference.com/browse/apopyle
annotated property: definition
annotated source: apopyle

crystal
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: spicule
id: PORO:0000094
has_related_synonym: silicate crystal
has_related_synonym: spicule crystal
has_obo_namespace: sponge

arrangement of spicules
type: Class
equivalent class: Class
  intersection of: anatomical group
  intersection of: Restriction
    on property: composed_of
    some values from: spicule
subclass of: anatomical group
subclass of: Restriction
  on property: composed_of
  some values from: spicule
id: PORO:0000095
has_obo_namespace: sponge

arrangement of megascleres
type: Class
equivalent class: Class
  intersection of: anatomical group
  intersection of: Restriction
    on property: composed_of
    some values from: megasclere
subclass of: arrangement of spicules
subclass of: Restriction
  on property: composed_of
  some values from: megasclere
id: PORO:0000096
has_obo_namespace: sponge

microsclere
type: Class
subclass of: spicule
disjoint with: megasclere
id: PORO:0000097
definition: Small spicule, often ornate in shape.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Small spicule, often ornate in shape.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microsclere

megasclere
type: Class
subclass of: spicule
definition: A large spicules, visible to the naked eye.
id: PORO:0000098
has_obo_namespace: sponge

Axiom
annotated target: A large spicules, visible to the naked eye.
database_cross_reference: Wikipedia:Sponge_spicule
annotated property: definition
annotated source: megasclere

primary skeleton
type: Class
subclass of: skeleton
id: PORO:0000099
has_obo_namespace: sponge

smoking
type: Class
subclass of: reproductive process
definition: Massive release of gametes.
id: PORO:0000100
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Massive release of gametes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: smoking

spined
type: Class
subclass of: morphology
database_cross_reference: PATO:0001365
id: PORO:0000101
definition: Prefix meaning spined, as in acanthostyle or acanthomicrorhabd
comment: Spicules of Demospongiae
has_related_synonym: echinate
has_obo_namespace: sponge

Axiom
annotated target: Prefix meaning spined, as in acanthostyle or acanthomicrorhabd
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spined

Axiom
database_cross_reference: UBERON:cjm
annotated target: echinate
annotated source: spined
annotated property: has_related_synonym

acanthophore
type: Class
subclass of: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000102
definition: Spicule having two to six stout spined rays, typically surrounding the point of insertion of the root tuft in Hyalonema species.
has_obo_namespace: sponge

Axiom
annotated target: Spicule having two to six stout spined rays, typically surrounding the point of insertion of the root tuft in Hyalonema species.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: acanthophore

accessory spicule
type: Class
subclass of: megasclere
subclass of: Restriction
  on property: echinates
  some values from: primary skeleton
definition: A megasclere echinating the primary skeleton. See ECHINATING SPICULE.
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000103
has_obo_namespace: sponge

Axiom
annotated target: A megasclere echinating the primary skeleton. See ECHINATING SPICULE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: accessory spicule

accretive reticulation
type: Class
subclass of: reticulate skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000104
definition: Regularly anisotropic reticulation with ascending (primary and radial) fibers or tracts and interconnecting fibers or tracts about equal in thickness
has_obo_namespace: sponge

Axiom
annotated target: Regularly anisotropic reticulation with ascending (primary and radial) fibers or tracts and interconnecting fibers or tracts about equal in thickness
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: accretive reticulation

acerate spicule
type: Class
subclass of: megasclere
id: PORO:0000105
definition: Pointed like a needle; adjective referring to the extremities of megascleres. See OXEA.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Pointed like a needle; adjective referring to the extremities of megascleres. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: acerate spicule

actine ray
type: Class
subclass of: spicule ray
definition: A centered ray containing an axis or axial canal. See also CLAD.
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000106
has_related_synonym: ray
has_obo_namespace: sponge

Axiom
annotated target: A centered ray containing an axis or axial canal. See also CLAD.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: actine ray

actinocyte
type: Class
subclass of: sponge cell
comment: Cytology
definition: Elongated contractile cell often grouped in sphincter- like structure around the osculum, below the sieve- plates, and around the large exhalant canals. Characterized by numerous filaments of actin within their cytoplasm. New term for the contractile cell (ac in figure).
id: PORO:0000107
has_related_synonym: contractile cell
has_related_synonym: myocyte
has_obo_namespace: sponge

Axiom
annotated target: Elongated contractile cell often grouped in sphincter- like structure around the osculum, below the sieve- plates, and around the large exhalant canals. Characterized by numerous filaments of actin within their cytoplasm. New term for the contractile cell (ac in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: actinocyte

agglutinated support
type: Class
subclass of: substrate
definition: Creating substrate or support by cementing together a mixture of foreign material, such as sand, shell, or rock.
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000108
has_obo_namespace: sponge

Axiom
annotated target: Creating substrate or support by cementing together a mixture of foreign material, such as sand, shell, or rock.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: agglutinated support

ala
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: part of
  some values from: chela
definition: One of the thin, wing-like or spatulate structures in each recurved portion of a chela. The anterior ala is the one facing the shaft; others are lateral alae. See CHELA.
id: PORO:0000109
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: One of the thin, wing-like or spatulate structures in each recurved portion of a chela. The anterior ala is the one facing the shaft; others are lateral alae. See CHELA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ala

alveolate skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000110
definition: Skeleton arranged around choanosomal cavities
has_obo_namespace: sponge

Axiom
annotated target: Skeleton arranged around choanosomal cavities
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: alveolate skeleton

amararhysis
type: Class
subclass of: exhalant canal
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000111
definition: Paleontological term for longitudinal, tunnellike canal opening to the exhalant surface by slit-like apertures.
has_obo_namespace: sponge

Axiom
annotated target: Paleontological term for longitudinal, tunnellike canal opening to the exhalant surface by slit-like apertures.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amararhysis

ambucinate
type: Class
subclass of: diactine
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Diactin with spines recurved toward the center
id: PORO:0000112
has_obo_namespace: sponge

Axiom
annotated target: Diactin with spines recurved toward the center
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ambucinate

amorphous
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000113
definition: Without definite shape. To be rejected, vague term. See MASSIVE.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Without definite shape. To be rejected, vague term. See MASSIVE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amorphous

amphiaster
type: Class
subclass of: microsclere
definition: A microsclere with microspined rays radiating from both ends of a shaft; the rays are shorter than the shaft
id: PORO:0000114
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A microsclere with microspined rays radiating from both ends of a shaft; the rays are shorter than the shaft
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amphiaster

amphiblastula
type: Class
subclass of: sponge larva
definition: Hollow, ovoid larva, with anterior flagellated and posterior nonflagellated groups of cells; typical of Calcaronea
id: PORO:0000115
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Hollow, ovoid larva, with anterior flagellated and posterior nonflagellated groups of cells; typical of Calcaronea
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amphiblastula

amphidisc
type: Class
subclass of: microsclere
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Dumbbell-shaped microsclere with ends developed into umbel-like expansions. Three size classes, termed macramphidisc, mesamphidisc, micramphidisc
id: PORO:0000116
has_obo_namespace: sponge

Axiom
annotated target: Dumbbell-shaped microsclere with ends developed into umbel-like expansions. Three size classes, termed macramphidisc, mesamphidisc, micramphidisc
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amphidisc

amphitriaene
type: Class
subclass of: triaene
subclass of: Restriction
  on property: has part
  some values from: Class
    intersection of: rhabd
    intersection of: Restriction
      on property: has part
      on class: cladome
      qualified cardinality: 2
definition: A double triaene with a short rhabd bearing two opposed cladomes
id: PORO:0000117
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A double triaene with a short rhabd bearing two opposed cladomes
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amphitriaene

amphitrider
type: Class
subclass of: tetraclone
id: PORO:0000118
comment: Spicule Types of "Lithistids"
definition: Tetraclone resembling an amphitriaene.
has_obo_namespace: sponge

Axiom
annotated target: Tetraclone resembling an amphitriaene.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: amphitrider

anastomosing
type: Class
subclass of: morphology
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000119
definition: Tracts, lines, or fibers are interconnected
has_exact_synonym: reticulate
has_obo_namespace: sponge

Axiom
annotated target: Tracts, lines, or fibers are interconnected
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anastomosing

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: reticulate
annotated source: anastomosing
annotated property: has_exact_synonym

anatriaene
type: Class
subclass of: triaene
definition: A triaene in which the clads are sharply curved backward
id: PORO:0000120
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene in which the clads are sharply curved backward
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anatriaene

anaxial desma
type: Class
subclass of: desma
definition: Desma without central axis.
id: PORO:0000121
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Desma without central axis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anaxial desma

anchor
type: Class
subclass of: spicule
definition: Anchor-like spicule, protruding free from the basal part of the sponge; derived from diactine, triactine, or tetractine spicules, with terminal rays or spines, curved in the proximal direction along the main ray
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000122
has_obo_namespace: sponge

Axiom
annotated target: Anchor-like spicule, protruding free from the basal part of the sponge; derived from diactine, triactine, or tetractine spicules, with terminal rays or spines, curved in the proximal direction along the main ray
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anchor

anchorate chela
type: Class
subclass of: isochela
definition: An isochela with three or more free alae (at each end) in the form of recurved processes shaped like anchor claws (unguiferous) or anchor blades (spatuliferous); with two incipient lateral alae fused with the shaft over their entire length and a gently curved, not abruptly arched shaft. An anchorate chela with three teeth is called a tridendate chela.
id: PORO:0000123
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An isochela with three or more free alae (at each end) in the form of recurved processes shaped like anchor claws (unguiferous) or anchor blades (spatuliferous); with two incipient lateral alae fused with the shaft over their entire length and a gently curved, not abruptly arched shaft. An anchorate chela with three teeth is called a tridendate chela.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anchorate chela

angulate spicule
type: Class
subclass of: spicule
id: PORO:0000124
definition: Sharply bent; referring to overall spicule shape, as in oxea or sigmas. See OXEA.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Sharply bent; referring to overall spicule shape, as in oxea or sigmas. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: angulate spicule

aniso-
type: Class
id: PORO:0000125
consider: PORO:0000126
definition: Prefix meaning unequal; generally referring to the ends of a spicule; see ANISOCHELA.
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix meaning unequal; generally referring to the ends of a spicule; see ANISOCHELA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aniso-

anisochela
type: Class
subclass of: chela
disjoint with: isochela
definition: A chela with unequal ends
id: PORO:0000126
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A chela with unequal ends
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anisochela

anisotropic skeleton
type: Class
subclass of: reticulate skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000127
definition: Reticulate skeleton with primary and secondary tracts, lines, or fibers
has_related_synonym: chalinid skeleton
has_obo_namespace: sponge

Axiom
annotated target: Reticulate skeleton with primary and secondary tracts, lines, or fibers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anisotropic skeleton

anomoclone
type: Class
id: PORO:0000128
consider: PORO:0000152
consider: PORO:0000538
comment: Spicule Types of "Lithistids"
definition: To be rejected. See ASTROCLONE, SPHAEROCLONE.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected. See ASTROCLONE, SPHAEROCLONE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anomoclone

anterior pole
type: Class
subclass of: pole of larva
id: PORO:0000129
definition: Pole directed forward when larva is swimming.
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Pole directed forward when larva is swimming.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anterior pole

anthaster
type: Class
subclass of: euaster
subclass of: Restriction
  on property: part of
  some values from: spicule ray
definition: An euaster with tuberculate, denticulate, or spined, sometimes digitate, expansions at the ray tips (Chondrilla grandis)
id: PORO:0000130
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An euaster with tuberculate, denticulate, or spined, sometimes digitate, expansions at the ray tips (Chondrilla grandis)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anthaster

antho-
type: Class
id: PORO:0000131
definition: Prefix meaning thorny.
comment: Spicules of Demospongiae. TODO: request PATO term
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix meaning thorny.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: antho-

anthosigma
type: Class
definition: A special form of spiraster (genus Anthosig mella; = Cliona); to be rejected.
id: PORO:0000132
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: A special form of spiraster (genus Anthosig mella; = Cliona); to be rejected.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: anthosigma

aphodal
type: Class
subclass of: choanocyte-lined chamber
comment: Anatomy and Aquiferous System
id: PORO:0000133
definition: Type of choanocyte chamber that connects directly with the inhalant canals through prosopyles and with the exhalant canal through an apopyle extended by an aphodus. Only one chamber opens into one aphodus
has_obo_namespace: sponge

Axiom
annotated target: Type of choanocyte chamber that connects directly with the inhalant canals through prosopyles and with the exhalant canal through an apopyle extended by an aphodus. Only one chamber opens into one aphodus
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aphodal

aphodus
type: Class
subclass of: exhalant canal
comment: Anatomy and Aquiferous System
id: PORO:0000134
definition: Small exhalant canal leading from the apopyle to an exhalant canal (ap in figure).
has_obo_namespace: sponge

Axiom
annotated target: Small exhalant canal leading from the apopyle to an exhalant canal (ap in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aphodus

apical actine (ray)
type: Class
subclass of: actine ray
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000135
definition: The fourth actine of a tetractine that is joined to the basal triradiate system
has_obo_namespace: sponge

Axiom
annotated target: The fourth actine of a tetractine that is joined to the basal triradiate system
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: apical actine (ray)

apochete
type: Class
subclass of: exhalant canal
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Exhalant canal in fossil sponges.
id: PORO:0000136
has_obo_namespace: sponge

Axiom
annotated target: Exhalant canal in fossil sponges.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: apochete

apopinacocyte
type: Class
equivalent class: Class
  intersection of: endopinacocyte
  intersection of: Restriction
    on property: part of
    some values from: exhalant canal
subclass of: endopinacocyte
subclass of: Restriction
  on property: part of
  some values from: exhalant canal
comment: Cytology
definition: Endopinacocyte lining the exhalant canal (ai in figure).
id: PORO:0000137
has_obo_namespace: sponge

Axiom
annotated target: Endopinacocyte lining the exhalant canal (ai in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: apopinacocyte

apopinacoderm
type: Class
subclass of: sponge surface
subclass of: Restriction
  on property: lined by
  some values from: apopinacocyte
comment: Cytology
id: PORO:0000138
definition: Surface lined by apopinacocytes.
has_obo_namespace: sponge

Axiom
annotated target: Surface lined by apopinacocytes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: apopinacoderm

apopore
type: Class
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000139
definition: To be rejected; in fossil sponges, an opening forming an exit from an apochete (= osculum).
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected; in fossil sponges, an opening forming an exit from an apochete (= osculum).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: apopore

apopylar cell
type: Class
equivalent class: Class
  intersection of: sponge cell
  intersection of: Restriction
    on property: surrounds
    some values from: apopyle
subclass of: sponge cell
subclass of: Restriction
  on property: surrounds
  some values from: apopyle
definition: Cell surrounding the apopyle and located between the choanocytes and the apopinacocytes (ay in figure).
comment: Cytology
id: PORO:0000140
has_obo_namespace: sponge

Axiom
annotated target: Cell surrounding the apopyle and located between the choanocytes and the apopinacocytes (ay in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: apopylar cell

aporhysis
type: Class
subclass of: canal
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: In fossil sponges, canal closed at the outer end (cf. epirhysis).
id: PORO:0000142
has_obo_namespace: sponge

Axiom
annotated target: In fossil sponges, canal closed at the outer end (cf. epirhysis).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aporhysis

aquiferous system
type: Class
subclass of: anatomical system
comment: Anatomy and Aquiferous System
id: PORO:0000143
definition: The entire water-conducting system between the ostia and the oscula, which comprises the inhalant system, choanocyte chambers, and the exhalant system
has_obo_namespace: sponge

Axiom
annotated target: The entire water-conducting system between the ostia and the oscula, which comprises the inhalant system, choanocyte chambers, and the exhalant system
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aquiferous system

arborescent
type: Class
subclass of: morphology
definition: Erect, branching habit, tree-like in appearance (Axinella polypoides)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000144
has_obo_namespace: sponge

Axiom
annotated target: Erect, branching habit, tree-like in appearance (Axinella polypoides)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: arborescent

arcuate chela
type: Class
subclass of: isochela
definition: An isochela with three free alae and the shaft characteristically curved outward, often bow-shaped.
id: PORO:0000146
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An isochela with three free alae and the shaft characteristically curved outward, often bow-shaped.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: arcuate chela

areolated surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000147
definition: Surface covered by numerous circular ectosomal areas (Hamigera)
has_obo_namespace: sponge

Axiom
annotated target: Surface covered by numerous circular ectosomal areas (Hamigera)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: areolated surface

articulate skeleton
type: Class
subclass of: choanoskeleton
comment: Calcareous Spicules and Calcareous Spicule Skeleton
definition: Choanoskeleton composed of several rows of similar spicules
id: PORO:0000148
has_obo_namespace: sponge

Axiom
annotated target: Choanoskeleton composed of several rows of similar spicules
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: articulate skeleton

asconoid
type: Class
subclass of: aquiferous system
comment: Anatomy and Aquiferous System
definition: Aquiferous system in which the internal cavity of the sponge is entirely lined by choanocytes
id: PORO:0000149
has_obo_namespace: sponge

Axiom
annotated target: Aquiferous system in which the internal cavity of the sponge is entirely lined by choanocytes
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: asconoid

aspidaster
type: Class
subclass of: microsclere
definition: An elongate-compressed microsclere in which the numerous rays are fused and end in minute spinose projections (Erylus spp.)
id: PORO:0000150
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An elongate-compressed microsclere in which the numerous rays are fused and end in minute spinose projections (Erylus spp.)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aspidaster

aspidoplumicome
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with numerous S-shaped terminal rays whose external curved ends form several successive tiers
id: PORO:0000151
has_obo_namespace: sponge

Axiom
annotated target: Hexaster with numerous S-shaped terminal rays whose external curved ends form several successive tiers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: aspidoplumicome

astroclone
type: Class
subclass of: desma
definition: Desma made up of radiating arms
id: PORO:0000152
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Desma made up of radiating arms
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: astroclone

astrorhiza
type: Class
subclass of: groove, pit or depression
comment: Calcareous Rigid Skeleton
id: PORO:0000153
definition: Traces of the excurrent canal system on or within a rigid skeleton that appear as radiating or star-shaped grooves.
has_obo_namespace: sponge

Axiom
annotated target: Traces of the excurrent canal system on or within a rigid skeleton that appear as radiating or star-shaped grooves.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: astrorhiza

asymmetric megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of a megasclere. See OXEA.
id: PORO:0000154
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Adjective referring to the extremities of a megasclere. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: asymmetric megasclere

atrial skeleton
type: Class
subclass of: skeleton
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000155
definition: Spicules surrounding the atrium.
has_related_synonym: atrial spicule
has_related_synonym: atrial spicule/skeleton
has_related_synonym: gastral
has_related_synonym: gastral spicule/skeleton
has_obo_namespace: sponge

Axiom
annotated target: atrial spicule
database_cross_reference: http://www.portol.org/thesaurus
annotated source: atrial skeleton
annotated property: has_related_synonym

Axiom
annotated target: Spicules surrounding the atrium.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: atrial skeleton

Axiom
annotated target: gastral
database_cross_reference: http://www.portol.org/thesaurus
annotated source: atrial skeleton
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
annotated target: gastral spicule/skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated source: atrial skeleton
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
annotated target: atrial spicule/skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated source: atrial skeleton
annotated property: has_related_synonym

autodermalia
type: Class
subclass of: dermalia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Dermalia belonging wholly or at least primarily to the outer bounding skin, without actin protruding inside the sponge body
id: PORO:0000157
has_obo_namespace: sponge

Axiom
annotated target: Dermalia belonging wholly or at least primarily to the outer bounding skin, without actin protruding inside the sponge body
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: autodermalia

autogastralia
type: Class
subclass of: gastralia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Gastralia with one actin protruding into the atrium
id: PORO:0000158
has_obo_namespace: sponge

Axiom
annotated target: Gastralia with one actin protruding into the atrium
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: autogastralia

axial filament
type: Class
subclass of: Restriction
  on property: part of
  some values from: siliceous spicule
id: PORO:0000159
comment: Spicules of Demospongiae
definition: The organic core around which a siliceous spicule is organized.
has_obo_namespace: sponge

Axiom
annotated target: The organic core around which a siliceous spicule is organized.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: axial filament

axial skeleton
type: Class
subclass of: skeleton
definition: A type of skeletal organization in which some components are condensed to form a central region or axis
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000160
has_obo_namespace: sponge

Axiom
annotated target: A type of skeletal organization in which some components are condensed to form a central region or axis
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: axial skeleton

axinellid skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000161
definition: Structure with a dense core of parallel fibers or strands fanning out toward the periphery of a sponge See also PLUMOSE or PLUMORETICULATE.
has_obo_namespace: sponge

Axiom
annotated target: Structure with a dense core of parallel fibers or strands fanning out toward the periphery of a sponge See also PLUMOSE or PLUMORETICULATE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: axinellid skeleton

bacteriocyte
type: Class
subclass of: sponge cell
definition: Cell containing prokaryotic microsymbionts
comment: Cytology
id: PORO:0000162
has_obo_namespace: sponge

Axiom
annotated target: Cell containing prokaryotic microsymbionts
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: bacteriocyte

bark
type: Class
subclass of: Restriction
  on property: part of
  some values from: pithed fiber
subclass of: Restriction
  on property: composed_of
  some values from: spongin
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000163
definition: The dense area of compacted spongin surrounding the central zone in pithed fibers
has_obo_namespace: sponge

Axiom
annotated target: The dense area of compacted spongin surrounding the central zone in pithed fibers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: bark

basal spongin plate
type: Class
subclass of: plate
definition: A spongin layer covering the substratum
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000164
has_related_synonym: basal lamina
has_obo_namespace: sponge

Axiom
annotated target: A spongin layer covering the substratum
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: basal spongin plate

basal triradiate system
type: Class
subclass of: Restriction
  on property: part of
  some values from: tetractine
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000165
definition: The three rays of a tetractine that correspond to those of a triactine
has_obo_namespace: sponge

Axiom
annotated target: The three rays of a tetractine that correspond to those of a triactine
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: basal triradiate system

basalia
type: Class
subclass of: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000166
definition: Spicules protruding from lower sponge surface; sometimes called root spicules, anchors, barbed basalia; in some species, forming a root tuft
has_obo_namespace: sponge
has_related_synonym: barbed basalia
has_related_synonym: anchor
has_related_synonym: root spicule

Axiom
annotated target: Spicules protruding from lower sponge surface; sometimes called root spicules, anchors, barbed basalia; in some species, forming a root tuft
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: basalia

basidictyonal plate
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000167
definition: Rigid basal skeletal framework.
has_obo_namespace: sponge

Axiom
annotated target: Rigid basal skeletal framework.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: basidictyonal plate

basopinacocyte
type: Class
subclass of: secretory cell
subclass of: pinacocyte
comment: Cytology
id: PORO:0000168
definition: Pinacocyte affixing the sponge to the substratum by external secretion of a collagenous matrix (bs in figure).
has_obo_namespace: sponge

Axiom
annotated target: Pinacocyte affixing the sponge to the substratum by external secretion of a collagenous matrix (bs in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: basopinacocyte

bipocillum
type: Class
subclass of: anisochela
definition: A modified anisochela with fused alae connected by a short curved shaft (genus Iophon)
id: PORO:0000169
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A modified anisochela with fused alae connected by a short curved shaft (genus Iophon)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: bipocillum

birotula
type: Class
subclass of: microsclere
definition: A type of microsclere with a straight shaft and umbrella-shaped ends
id: PORO:0000170
comment: Spicules of Demospongiae
has_related_synonym: amphidisc
has_obo_namespace: sponge

Axiom
annotated target: A type of microsclere with a straight shaft and umbrella-shaped ends
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: birotula

blastula
type: Class
id: PORO:0000171
comment: Reproduction
definition: Term to be rejected. See COELOBLASTULA.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Term to be rejected. See COELOBLASTULA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: blastula

blunt megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of megascleres. See OXEA.
id: PORO:0000172
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Adjective referring to the extremities of megascleres. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: blunt megasclere

bouquet
type: Class
subclass of: arrangement of spicules
comment: Architecture of the Skeleton of Demospongiae
definition: Ectosomal brush of spicules perpendicular to the surface of the sponge, with pointed ends outward.
id: PORO:0000173
has_obo_namespace: sponge

Axiom
annotated target: Ectosomal brush of spicules perpendicular to the surface of the sponge, with pointed ends outward.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: bouquet

brachyome
type: Class
subclass of: Restriction
  on property: part of
  some values from: trider
id: PORO:0000174
definition: Shortened arm of a trider.
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Shortened arm of a trider.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: brachyome

branching
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000175
definition: Spreading out in branches (see also ARBORESCENT and REPENT).
has_obo_namespace: sponge

Axiom
annotated target: Spreading out in branches (see also ARBORESCENT and REPENT).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: branching

bud
type: Class
subclass of: reproductive body
definition: An asexual reproductive body composed of various types of cells (e.g., Tethya spp., Axinella damicornis).
id: PORO:0000176
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: An asexual reproductive body composed of various types of cells (e.g., Tethya spp., Axinella damicornis).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: bud

calcareous tripod
type: Class
subclass of: regular spicule
subclass of: triactine
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000178
definition: Regular triactine whose center is not in the same plane as the extremities of the recurved rays.
has_obo_namespace: sponge

Axiom
annotated target: Regular triactine whose center is not in the same plane as the extremities of the recurved rays.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: calcareous tripod

caliculate
type: Class
subclass of: morphology
definition: Cup shaped (Poterion neptuni)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000179
has_related_synonym: cup shaped
has_obo_namespace: sponge

Axiom
annotated target: Cup shaped (Poterion neptuni)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: caliculate

calthrop
type: Class
subclass of: spicule
definition: Equiangular tetraxon with equal rays
id: PORO:0000180
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Equiangular tetraxon with equal rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: calthrop

calycocome
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with stout main rays and with terminal rays directed outward
id: PORO:0000181
has_obo_namespace: sponge

Axiom
annotated target: Hexaster with stout main rays and with terminal rays directed outward
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: calycocome

canalaria
type: Class
subclass of: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000182
definition: Spicules lining canals
has_obo_namespace: sponge

Axiom
annotated target: Spicules lining canals
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: canalaria

candelabrum
type: Class
subclass of: lophocalthrop
definition: A special form of lophocalthrop characterized by branching, multispined rays
id: PORO:0000183
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A special form of lophocalthrop characterized by branching, multispined rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: candelabrum

canonochela
type: Class
subclass of: isochela
definition: Modified, ellipsoid isochela with wing-like extensions on one (the bottom) side (genus Cercidochela)
id: PORO:0000184
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Modified, ellipsoid isochela with wing-like extensions on one (the bottom) side (genus Cercidochela)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: canonochela

carrier cell
type: Class
subclass of: choanocyte
definition: Modified choanocyte that transports a captured spermatozoid to an oocyte
id: PORO:0000185
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Modified choanocyte that transports a captured spermatozoid to an oocyte
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: carrier cell

cellules en croix
type: Class
subclass of: multicellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: amphiblastula
definition: Nonflagellated cells arranged in tetraradial fashion in the amphiblastula of Calcaronea
id: PORO:0000186
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Nonflagellated cells arranged in tetraradial fashion in the amphiblastula of Calcaronea
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cellules en croix

cemented spicule
type: Class
subclass of: spicule
comment: Calcareous Rigid Skeleton
definition: Interlocked or adjacent spicules firmly linked by calcareous cement; the cement may be restricted to the junction area or may progressively encase the entire spicule
id: PORO:0000187
has_related_synonym: fused spicule
has_obo_namespace: sponge

Axiom
annotated target: Interlocked or adjacent spicules firmly linked by calcareous cement; the cement may be restricted to the junction area or may progressively encase the entire spicule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cemented spicule

center
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: part of
  some values from: spicule
subclass of: Restriction
  on property: adjacent to
  on class: spicule ray
  qualified cardinality: 3
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000188
definition: Point of union of the three rays of a triactine or of a basal triradiate system.
has_obo_namespace: sponge
has_related_synonym: centrum

Axiom
annotated target: Point of union of the three rays of a triactine or of a basal triradiate system.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: center

central cell
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: part of
  some values from: apopyle
comment: Cytology
id: PORO:0000189
definition: Single cell located at the apopyle of choanocyte chambers
has_obo_namespace: sponge

Axiom
annotated target: Single cell located at the apopyle of choanocyte chambers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: central cell

centrotriaene
type: Class
subclass of: triaene
definition: A triaene with three clads and two small rhabds (genus Triptolemus)
id: PORO:0000190
comment: Spicules of Demospongiae. Editors note: Definition inconsistent with parent?
has_obo_namespace: sponge

Axiom
annotated target: A triaene with three clads and two small rhabds (genus Triptolemus)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: centrotriaene

centrotylote
type: Class
subclass of: spicule
subclass of: Restriction
  on property: has part
  some values from: tyle
id: PORO:0000191
definition: Spicule with a median tyle (globular swelling). See OXEA.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Spicule with a median tyle (globular swelling). See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: centrotylote

chela
type: Class
subclass of: microsclere
definition: A microsclere with a curved shaft and recurved ala at each end.
id: PORO:0000192
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A microsclere with a curved shaft and recurved ala at each end.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: chela

chiactine
type: Class
subclass of: tetractine
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000193
definition: Tetractine with the unpaired ray of the basal system and the apical ray in the same alignment
has_obo_namespace: sponge

Axiom
annotated target: Tetractine with the unpaired ray of the basal system and the apical ray in the same alignment
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: chiactine

chiastoclone
type: Class
subclass of: dendroclone
definition: Dendroclone with a very short central shaft.
id: PORO:0000194
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Dendroclone with a very short central shaft.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: chiastoclone

chiastosigma
type: Class
subclass of: microsclere
definition: Microsclere composed of two crossed sigmas (genus Chiastosia)
id: PORO:0000195
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Microsclere composed of two crossed sigmas (genus Chiastosia)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: chiastosigma

choanoblast
type: Class
subclass of: sponge cell
definition: Cell that buds anucleate outgrowth called COLLAR BODY; in Hexactinellida
comment: Cytology
id: PORO:0000196
has_obo_namespace: sponge

Axiom
annotated target: Cell that buds anucleate outgrowth called COLLAR BODY; in Hexactinellida
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choanoblast

choanochamber
type: Class
subclass of: chamber
comment: Anatomy and Aquiferous System
definition: Hexactinellida equivalent of the choanocyte chambers of Demospongiae and Calcarea.
id: PORO:0000197
has_related_synonym: flagellated chamber
has_obo_namespace: sponge

Axiom
annotated target: Hexactinellida equivalent of the choanocyte chambers of Demospongiae and Calcarea.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choanochamber

Axiom
annotated target: flagellated chamber
database_cross_reference: http://www.portol.org/thesaurus
annotated source: choanochamber
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

choanoderm
type: Class
subclass of: portion of tissue
subclass of: Restriction
  on property: has part
  some values from: choanocyte
comment: Cytology
id: PORO:0000200
definition: Surface lined by choanocytes.
has_obo_namespace: sponge

Axiom
annotated target: Surface lined by choanocytes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choanoderm

choanoskeleton
type: Class
subclass of: skeleton
subclass of: Restriction
  on property: has part
  some values from: choanocyte
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000201
definition: Skeleton of the part of the sponge that contains choanocytes
has_obo_namespace: sponge

Axiom
annotated target: Skeleton of the part of the sponge that contains choanocytes
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choanoskeleton

choanosomal skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000202
definition: Skeleton of the main body, supporting the canal system and responsible for the form of the sponge.
has_related_synonym: endosomal skeleton
has_related_synonym: main skeleton
has_related_synonym: primary skeleton
has_related_synonym: principal skeleton
has_obo_namespace: sponge

Axiom
annotated target: Skeleton of the main body, supporting the canal system and responsible for the form of the sponge.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choanosomal skeleton

choanosome
type: Class
subclass of: organism subdivision
comment: Anatomy and Aquiferous System
id: PORO:0000203
definition: The internal region of a sponge, including the choanocyte chambers.
has_obo_namespace: sponge

Axiom
annotated target: The internal region of a sponge, including the choanocyte chambers.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choanosome

choristid megasclere arrangement
type: Class
subclass of: arrangement of megascleres
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000204
definition: Predominantly radiate, occasionally confused arrangement of megascleres including triaenes with cladome outward, lacking spongin, and commonly with a cortex.
has_related_synonym: astrophorid
has_related_synonym: choristid
has_obo_namespace: sponge

Axiom
annotated target: Predominantly radiate, occasionally confused arrangement of megascleres including triaenes with cladome outward, lacking spongin, and commonly with a cortex.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: choristid megasclere arrangement

Axiom
annotated target: choristid
annotated source: choristid megasclere arrangement
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: astrophorid
annotated source: choristid megasclere arrangement
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

cinctoblastula
type: Class
subclass of: sponge larva
definition: Hollow larva, entirely flagellated, with a central ring of pigmented cells; typical of Homoscleromorpha
id: PORO:0000205
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Hollow larva, entirely flagellated, with a central ring of pigmented cells; typical of Homoscleromorpha
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cinctoblastula

clad
type: Class
subclass of: spicule ray
disjoint with: rhabd
definition: Any ray or axial branch containing an axis or axial canal confluent with that of the protoclad or protorhabd in any type of spicule; term chiefly used in triaene spicules.
id: PORO:0000206
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Any ray or axial branch containing an axis or axial canal confluent with that of the protoclad or protorhabd in any type of spicule; term chiefly used in triaene spicules.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clad

cladome
type: Class
equivalent class: Class
  intersection of: clad
  intersection of: Restriction
    on property: part of
    some values from: Class
      union of: triaene
      union of: Restriction
        on property: develops_from
        some values from: spicule
subclass of: clad
subclass of: Restriction
  on property: part of
  some values from: Class
    union of: triaene
    union of: Restriction
      on property: develops_from
      some values from: spicule
id: PORO:0000207
comment: Spicules of Demospongiae
definition: The clads of a triaene or triaene-derivative spicule.
has_obo_namespace: sponge

Axiom
annotated target: The clads of a triaene or triaene-derivative spicule.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cladome

cladotylote
type: Class
subclass of: megasclere
definition: Monaxon megasclere, one end with knobs, the other with hooks
id: PORO:0000208
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Monaxon megasclere, one end with knobs, the other with hooks
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cladotylote

clathrate
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000209
definition: Resembling open latticework (Clathrina coriacea)
has_obo_namespace: sponge

Axiom
annotated target: Resembling open latticework (Clathrina coriacea)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clathrate

clathrate skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000210
definition: Polyhedral arrangement of fibroreticulate sheets
has_obo_namespace: sponge

Axiom
annotated target: Polyhedral arrangement of fibroreticulate sheets
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clathrate skeleton

clathriid skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
definition: Isodictyal or subisodictyal arrangement of fibers cored and/or echinated by styles in the family Microcionidae
id: PORO:0000211
has_obo_namespace: sponge

Axiom
annotated target: Isodictyal or subisodictyal arrangement of fibers cored and/or echinated by styles in the family Microcionidae
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clathriid skeleton

clavate
type: Class
subclass of: morphology
definition: Club shaped (Rhizaxinella pyrifera)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000212
has_obo_namespace: sponge

Axiom
annotated target: Club shaped (Rhizaxinella pyrifera)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clavate

clavidisc microsclere
type: Class
subclass of: microsclere
definition: A ring-shaped microsclere (genus Merlia).
id: PORO:0000213
comment: Spicules of Demospongiae
has_related_synonym: clavidisc
has_obo_namespace: sponge

Axiom
annotated target: clavidisc
annotated source: clavidisc microsclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: A ring-shaped microsclere (genus Merlia).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clavidisc microsclere

clavule
type: Class
subclass of: sceptrule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000214
definition: Sceptrule with one terminal umbel or with terminal anchor teeth
has_obo_namespace: sponge

Axiom
annotated target: Sceptrule with one terminal umbel or with terminal anchor teeth
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clavule

cleistochela
type: Class
subclass of: chela
definition: A chela with the ends (anterior alae) very close to each other (e.g., Clathria echinata)
id: PORO:0000215
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A chela with the ends (anterior alae) very close to each other (e.g., Clathria echinata)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cleistochela

clone
type: Class
id: PORO:0000216
definition: Ray-like arm that is entirely anaxial.
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Ray-like arm that is entirely anaxial.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: clone

codonhexactin
type: Class
subclass of: discohexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Discohexactin with long, dendate, umbel-like structures
id: PORO:0000217
has_obo_namespace: sponge

Axiom
annotated target: Discohexactin with long, dendate, umbel-like structures
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: codonhexactin

coeloblastula
type: Class
subclass of: sponge larva
definition: Hollow larva composed of an envelope of morphologically similar equipotent cells, to which a few larger nonflagellated cells may be added at the posterior pole.
id: PORO:0000218
comment: Reproduction
has_related_synonym: blastula
has_obo_namespace: sponge

Axiom
annotated target: Hollow larva composed of an envelope of morphologically similar equipotent cells, to which a few larger nonflagellated cells may be added at the posterior pole.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: coeloblastula

Axiom
annotated target: blastula
database_cross_reference: http://www.portol.org/thesaurus
annotated source: coeloblastula
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

coenosteum
type: Class
comment: Calcareous Rigid Skeleton
id: PORO:0000219
definition: Term for cnidarians, used for the solid skeleton in stromatoporoids; to be rejected for sponges in favor of rigid calcareous skeleton.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Term for cnidarians, used for the solid skeleton in stromatoporoids; to be rejected for sponges in favor of rigid calcareous skeleton.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: coenosteum

collagen fascicle
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: composed_of
  some values from: collagen fibril
definition: A dense band of intercellular collagen fibrils, which has a skeletal role in some sponges (e.g., genus Chondrosia)
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000220
has_obo_namespace: sponge

Axiom
annotated target: A dense band of intercellular collagen fibrils, which has a skeletal role in some sponges (e.g., genus Chondrosia)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: collagen fascicle

collar body
type: Class
subclass of: choanocyte
subclass of: Class
  complement of: Restriction
    on property: has part
    some values from: nucleus
subclass of: Restriction
  on property: develops_from
  some values from: choanoblast
definition: Anucleate choanocyte in hexactinellids.
comment: Cytology
id: PORO:0000221
has_obo_namespace: sponge

Axiom
annotated target: Anucleate choanocyte in hexactinellids.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: collar body

collencyte
type: Class
subclass of: secretory cell
definition: Cell with branching pseudopods/cytoplasmic strands, involved in the secretion of collagen (co in figure).
comment: Cytology
id: PORO:0000222
has_obo_namespace: sponge
has_exact_synonym: collenocyte

Axiom
annotated target: Cell with branching pseudopods/cytoplasmic strands, involved in the secretion of collagen (co in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: collencyte

column
type: Class
comment: Calcareous Rigid Skeleton
id: PORO:0000223
definition: Radial skeletal element in stromatoporoids, with a greater degree of continuity and larger than PILLARS.
has_obo_namespace: sponge

Axiom
annotated target: Radial skeletal element in stromatoporoids, with a greater degree of continuity and larger than PILLARS.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: column

columnar
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000224
definition: Shape of solid, erect cylinder (Petrosia capsa)
has_obo_namespace: sponge

Axiom
annotated target: Shape of solid, erect cylinder (Petrosia capsa)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: columnar

comitalia
type: Class
subclass of: parenchymalia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000225
definition: Parenchymalia located close and parallel to principalia
has_obo_namespace: sponge

Axiom
annotated target: Parenchymalia located close and parallel to principalia
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: comitalia

comma
type: Class
definition: A curved microstyle
id: PORO:0000226
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: A curved microstyle
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: comma

compound fiber
type: Class
subclass of: fiber
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000227
definition: Several fibers merged or intricately interconnected
has_related_synonym: fasciculate fiber
has_related_synonym: fibrofascicle
has_obo_namespace: sponge
has_related_synonym: trellised fiber

Axiom
annotated target: Several fibers merged or intricately interconnected
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: compound fiber

compressible
type: Class
subclass of: structural quality
definition: Easily squeezed.
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000228
has_obo_namespace: sponge

Axiom
annotated target: Easily squeezed.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: compressible

confused skeleton
type: Class
subclass of: arrangement of megascleres
comment: Architecture of the Skeleton of Demospongiae
definition: Irregularly positioned megascleres.
id: PORO:0000229
has_obo_namespace: sponge

Axiom
annotated target: Irregularly positioned megascleres.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: confused skeleton

conical megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of megascleres. See OXEA.
id: PORO:0000230
comment: Spicules of Demospongiae
has_related_synonym: abruptly pointed
has_related_synonym: conical
has_obo_namespace: sponge

Axiom
annotated target: conical
annotated source: conical megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: abruptly pointed
annotated source: conical megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: Adjective referring to the extremities of megascleres. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: conical megasclere

conulose surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000231
definition: Surface with numerous cone-shaped projections raised up by underlying skeleton (Dysidea sp.)
has_obo_namespace: sponge

Axiom
annotated target: Surface with numerous cone-shaped projections raised up by underlying skeleton (Dysidea sp.)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: conulose surface

corallite (= calyx)
type: Class
comment: Calcareous Rigid Skeleton
definition: In cnidarians, term for the external skeleton of a polyp; to be rejected for sponges in favor of PSEUDOCALYX.
id: PORO:0000232
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: In cnidarians, term for the external skeleton of a polyp; to be rejected for sponges in favor of PSEUDOCALYX.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: corallite (= calyx)

cored fiber
type: Class
subclass of: fiber
definition: A fiber that incorporates indigenous spicules or foreign material (spicules and sediment); coring may be light and limited to a central axis or may fill in the whole fiber
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000233
has_obo_namespace: sponge

Axiom
annotated target: A fiber that incorporates indigenous spicules or foreign material (spicules and sediment); coring may be light and limited to a central axis or may fill in the whole fiber
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cored fiber

corrugated surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000234
definition: Surface with alternating parallel ridges and grooves (Callyspongia plicifera)
has_obo_namespace: sponge

Axiom
annotated target: Surface with alternating parallel ridges and grooves (Callyspongia plicifera)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: corrugated surface

cortex
type: Class
subclass of: organism subdivision
definition: A superficial region of a sponge reinforced by a special organic or inorganic skeleton
comment: Anatomy and Aquiferous System
id: PORO:0000235
has_related_synonym: crust
has_obo_namespace: sponge

Axiom
annotated target: A superficial region of a sponge reinforced by a special organic or inorganic skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cortex

cortical skeleton
type: Class
subclass of: ectosomal skeleton
comment: Architecture of the Skeleton of Demospongiae
definition: Ectosomal skeleton reinforced by a layer of special skeleton elements.
id: PORO:0000236
has_obo_namespace: sponge

Axiom
annotated target: Ectosomal skeleton reinforced by a layer of special skeleton elements.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cortical skeleton

cortical spicule
type: Class
subclass of: spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000237
definition: Spicule or skeleton of the external layer or cortex of the sponge
has_related_synonym: dermal spicule/skeleton
has_obo_namespace: sponge

Axiom
annotated target: dermal spicule/skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated source: cortical spicule
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
annotated target: Spicule or skeleton of the external layer or cortex of the sponge
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cortical spicule

crateriform
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
definition: Massive shape, with a broad base and large central depression (Xestospongia muta).
id: PORO:0000238
has_obo_namespace: sponge

Axiom
annotated target: Massive shape, with a broad base and large central depression (Xestospongia muta).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: crateriform

crepis
type: Class
subclass of: Restriction
  on property: part of
  some values from: desma
id: PORO:0000239
comment: Spicule Types of "Lithistids"
definition: The fundamental, inceptional body of a desma before it is modified by deposition of multiple layers of silica. A monocrepid desma develops from a monaxon spicule that is recognized by a straight, undivided axial thread (canal); a tetracrepid desma is based on a tetraxon spicule with a four-rayed axial thread (a small calthrops; see bottom of figure); an acrepid desma is based on a polyaxon fundamental structure lacking axial threads.
has_related_synonym: acrepis
has_related_synonym: monocrepid
has_obo_namespace: sponge
has_related_synonym: tetracrepid

Axiom
annotated target: The fundamental, inceptional body of a desma before it is modified by deposition of multiple layers of silica. A monocrepid desma develops from a monaxon spicule that is recognized by a straight, undivided axial thread (canal); a tetracrepid desma is based on a tetraxon spicule with a four-rayed axial thread (a small calthrops; see bottom of figure); an acrepid desma is based on a polyaxon fundamental structure lacking axial threads.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: crepis

cri-
type: Class
id: PORO:0000240
definition: Prefix indicating spiral or annulate ornamentation, as in cricalthrop (genus Sphinctrella)
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix indicating spiral or annulate ornamentation, as in cricalthrop (genus Sphinctrella)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cri-

croca
type: Class
subclass of: microsclere
definition: A J-shaped microsclere
id: PORO:0000241
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A J-shaped microsclere
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: croca

crypt tissue
type: Class
subclass of: portion of tissue
subclass of: Restriction
  on property: has part
  some values from: crypt cell
comment: Calcareous Rigid Skeleton
definition: Masses of thesocyte-like cells lodged within the basal crypts (chambers) of the calcareous skeleton (see ct in figure).
id: PORO:0000242
has_obo_namespace: sponge

Axiom
annotated target: Masses of thesocyte-like cells lodged within the basal crypts (chambers) of the calcareous skeleton (see ct in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: crypt tissue

crystal ultrastructure
type: Class
subclass of: anatomical group
comment: Calcareous Rigid Skeleton
definition: Organization of the skeletal crystals observed after special preparation showing the relationship between organic and mineral phases.
id: PORO:0000243
has_obo_namespace: sponge

Axiom
annotated target: Organization of the skeletal crystals observed after special preparation showing the relationship between organic and mineral phases.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: crystal ultrastructure

curved
type: Class
subclass of: morphology
id: PORO:0000244
definition: Referring to spicule shape (may be symmetrical or asymmetrical). See OXEA.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Referring to spicule shape (may be symmetrical or asymmetrical). See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: curved

cuticle
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: composed_of
  some values from: spongin
subclass of: Restriction
  on property: part of
  some values from: sponge surface
definition: A spongin layer covering the surface or a part of the surface of a sponge.
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000245
has_obo_namespace: sponge

Axiom
annotated target: A spongin layer covering the surface or a part of the surface of a sponge.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cuticle

cyrtancistra
type: Class
subclass of: sigma
definition: A sigma with semilanceolated extremities (genus Pozziella)
id: PORO:0000246
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A sigma with semilanceolated extremities (genus Pozziella)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cyrtancistra

cystencyte
type: Class
subclass of: sponge cell
definition: Cell with a single large vesicle containing amorphous material identified as polysaccharide and occupying most of the cell volume
comment: Cytology
id: PORO:0000247
has_obo_namespace: sponge

Axiom
annotated target: Cell with a single large vesicle containing amorphous material identified as polysaccharide and occupying most of the cell volume
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: cystencyte

dendritic
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000248
definition: To be rejected for habit (term used as a descriptor of skeleton, see "Architecture of the Skeleton of Demospongiae").
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected for habit (term used as a descriptor of skeleton, see "Architecture of the Skeleton of Demospongiae").
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dendritic

dendritic skeleton
type: Class
subclass of: skeleton
definition: A skeleton consisting of single or ramifying fibers or tracts that branch but rarely anastomose (tree-like branching)
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000249
has_obo_namespace: sponge

Axiom
annotated target: A skeleton consisting of single or ramifying fibers or tracts that branch but rarely anastomose (tree-like branching)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dendritic skeleton

dendroclone
type: Class
subclass of: desma
definition: Desma with branched ends or tetracladine, amphitrider-like; always positioned perpendicular to skeletal fibers.
id: PORO:0000250
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Desma with branched ends or tetracladine, amphitrider-like; always positioned perpendicular to skeletal fibers.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dendroclone

dendroreticulate fiber skeleton
type: Class
definition: Ambiguous, to be rejected.
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000251
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Ambiguous, to be rejected.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dendroreticulate fiber skeleton

dermalia
type: Class
subclass of: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000252
definition: Spicules of the external sponge surface. See AUTODERMALIA, HYPODERMALIA
has_obo_namespace: sponge

Axiom
annotated target: Spicules of the external sponge surface. See AUTODERMALIA, HYPODERMALIA
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dermalia

desma
type: Class
subclass of: megasclere
definition: A typical interlocked megasclere with hypertrophic terminal secretion of silica.
id: PORO:0000253
comment: Spicule Types of "Lithistids"
has_related_synonym: desmome
has_related_synonym: desmone
has_related_synonym: desmone megasclere
has_obo_namespace: sponge

Axiom
annotated target: A typical interlocked megasclere with hypertrophic terminal secretion of silica.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: desma

deuteroclad
type: Class
subclass of: Restriction
  on property: part of
  some values from: spicule ray
definition: An actinal branch or a distal, branched portion of a ray. See DICHOTRIAENE.
id: PORO:0000254
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An actinal branch or a distal, branched portion of a ray. See DICHOTRIAENE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: deuteroclad

diactin
type: Class
subclass of: megasclere
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 2
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Megascleres with two rays and frequently with central swellings indicating the hexactin origin.
id: PORO:0000255
has_obo_namespace: sponge

Axiom
annotated target: Megascleres with two rays and frequently with central swellings indicating the hexactin origin.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diactin

diactine
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: has part
    on class: actine ray
    qualified cardinality: 2
subclass of: spicule
subclass of: Restriction
  on property: has part
  on class: actine ray
  qualified cardinality: 2
definition: A spicule composed of two actines
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000256
has_obo_namespace: sponge

Axiom
annotated target: A spicule composed of two actines
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diactine

diaene
type: Class
subclass of: tetractine
subclass of: Restriction
  on property: variant of
  some values from: triaene
subclass of: Restriction
  on property: has part
  on class: clad
  qualified cardinality: 2
id: PORO:0000257
definition: Reduced triaene with two clads
comment: Spicules of Demospongiae. Editors note: we use the variant_of relation here to avoid inconsistency
has_obo_namespace: sponge

Axiom
annotated target: Reduced triaene with two clads
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diaene

diancistra
type: Class
subclass of: microsclere
definition: A microsclere with hooked, knife-shaped ends, notched where they join the shaft and in the middle of the shaft (genus Hamacantha)
id: PORO:0000258
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A microsclere with hooked, knife-shaped ends, notched where they join the shaft and in the middle of the shaft (genus Hamacantha)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diancistra

diapason
type: Class
subclass of: sagittal spicule
subclass of: triactine
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000259
definition: Sagittal triactine with parallel paired rays
has_obo_namespace: sponge
has_related_synonym: tuning-fork spicule

Axiom
annotated target: Sagittal triactine with parallel paired rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diapason

diarhysis
type: Class
subclass of: canal
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: In fossil sponges, radial canal in the honeycomb- like skeleton of Aphrocallistidae.
id: PORO:0000260
has_obo_namespace: sponge

Axiom
annotated target: In fossil sponges, radial canal in the honeycomb- like skeleton of Aphrocallistidae.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diarhysis

dichotriaene
type: Class
equivalent class: Class
  intersection of: Class
    union of: orthotriaene
    union of: plagiotriaene
  intersection of: Restriction
    on property: has part
    some values from: bifurcate clad
subclass of: triaene
subclass of: Restriction
  on property: has part
  some values from: bifurcate clad
definition: An ortho or plagiotriaene in which the clads are bifurcate
id: PORO:0000261
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An ortho or plagiotriaene in which the clads are bifurcate
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dichotriaene

dicranoclone
type: Class
subclass of: desma
id: PORO:0000262
comment: Spicule Types of "Lithistids"
definition: Tuberculate monaxial desma, arch shaped, tripodal, tetrapodal, or rarely polygonal; zygomes are terminal, like those of the tetraclone.
has_obo_namespace: sponge

Axiom
annotated target: Tuberculate monaxial desma, arch shaped, tripodal, tetrapodal, or rarely polygonal; zygomes are terminal, like those of the tetraclone.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dicranoclone

dictyonal skeleton (= dictyonine)
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000263
definition: Three-dimensional network of fused, regular hexactins
has_obo_namespace: sponge

Axiom
annotated target: Three-dimensional network of fused, regular hexactins
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dictyonal skeleton (= dictyonine)

dictyonalia
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: develops_from
  some values from: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000264
definition: Spicules fused into a rigid framework.
has_obo_namespace: sponge

Axiom
annotated target: Spicules fused into a rigid framework.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dictyonalia

didiscorhabd
type: Class
subclass of: microsclere
definition: Microxea or microstrongyle ornamented by two discs along the shaft (genus Didiscus)
id: PORO:0000265
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Microxea or microstrongyle ornamented by two discs along the shaft (genus Didiscus)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: didiscorhabd

digitate
type: Class
subclass of: morphology
definition: Deeply divided, finger-like outgrowths from basal mass (Halichondria bowerbanki)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000266
has_obo_namespace: sponge

Axiom
annotated target: Deeply divided, finger-like outgrowths from basal mass (Halichondria bowerbanki)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: digitate

diod spicule
type: Class
subclass of: diactine
definition: Any diactine spicule with a central double-bent kink
id: PORO:0000267
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Any diactine spicule with a central double-bent kink
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diod spicule

diplaster
type: Class
subclass of: microsclere
definition: An astrose microsclere in which the rays or spines radiate from two, slightly distant, points
id: PORO:0000268
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An astrose microsclere in which the rays or spines radiate from two, slightly distant, points
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diplaster

diplodal
type: Class
comment: Anatomy and Aquiferous System
id: PORO:0000269
definition: Type of choanocyte chamber that connects with the inhalant canals through a canaliculum called the prosodus and with the excurrent canal through an apopyle extended by an aphodus
has_obo_namespace: sponge

Axiom
annotated target: Type of choanocyte chamber that connects with the inhalant canals through a canaliculum called the prosodus and with the excurrent canal through an apopyle extended by an aphodus
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: diplodal

discaster
type: Class
definition: A collective term for DISCORHABD and SCEPTRUM; to be rejected.
id: PORO:0000270
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: A collective term for DISCORHABD and SCEPTRUM; to be rejected.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: discaster

dischela
type: Class
subclass of: isochela
definition: A modified isochela whose disc-shaped alae are very close to each other and connected on their margins by two extremely reduced shafts (genus Coelodischela)
id: PORO:0000271
comment: Spicules of Demospongiae
has_related_synonym: coelodischela
has_obo_namespace: sponge

Axiom
annotated target: A modified isochela whose disc-shaped alae are very close to each other and connected on their margins by two extremely reduced shafts (genus Coelodischela)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: dischela

discoctaster
type: Class
subclass of: octaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Octaster with terminal rays ending in umbel-like disks
id: PORO:0000272
has_obo_namespace: sponge

Axiom
annotated target: Octaster with terminal rays ending in umbel-like disks
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: discoctaster

discohexactin
type: Class
subclass of: hexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexactin with rays terminating in dentate, umbel-like structures
id: PORO:0000273
has_obo_namespace: sponge

Axiom
annotated target: Hexactin with rays terminating in dentate, umbel-like structures
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: discohexactin

discohexaster
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with dentate, umbel-like terminal rays.
id: PORO:0000274
has_obo_namespace: sponge

Axiom
annotated target: Hexaster with dentate, umbel-like terminal rays.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: discohexaster

discorhabd
type: Class
subclass of: microsclere
definition: A rod-shaped microsclere with several smooth or serrated discs along the shaft (genera Latrunculia, Podospongia, Sceptrinus)
id: PORO:0000275
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: sceptrum

Axiom
annotated target: A rod-shaped microsclere with several smooth or serrated discs along the shaft (genera Latrunculia, Podospongia, Sceptrinus)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: discorhabd

discotriaene
type: Class
definition: A triaene with a disc-shaped cladome. The single clads may be distinguished by the presence of short axial canals (genus Discodermia)
id: PORO:0000276
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene with a disc-shaped cladome. The single clads may be distinguished by the presence of short axial canals (genus Discodermia)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: discotriaene

drepanocome
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with sickle-like terminations (genus Dictyaulus)
id: PORO:0000277
has_obo_namespace: sponge

Axiom
annotated target: Hexaster with sickle-like terminations (genus Dictyaulus)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: drepanocome

echinating spicule
type: Class
subclass of: megasclere
comment: Architecture of the Skeleton of Demospongiae
definition: Megasclere that protrudes from the spon gin plate, a fiber, or a spicule tract
id: PORO:0000278
has_obo_namespace: sponge

Axiom
annotated target: Megasclere that protrudes from the spon gin plate, a fiber, or a spicule tract
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: echinating spicule

ectochrote
type: Class
subclass of: Restriction
  on property: part of
  some values from: cortex
comment: Architecture of the Skeleton of Demospongiae
definition: Outer layer of the cortex
id: PORO:0000279
has_obo_namespace: sponge

Axiom
annotated target: Outer layer of the cortex
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ectochrote

ectosomal skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000280
definition: Skeleton found in the superficial region of a sponge, distinct from that of the choanosome.
has_related_synonym: dermal skeleton
has_related_synonym: ectosomal crust
has_obo_namespace: sponge

Axiom
annotated target: Skeleton found in the superficial region of a sponge, distinct from that of the choanosome.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ectosomal skeleton

ectosome
type: Class
subclass of: organism subdivision
comment: Anatomy and Aquiferous System
id: PORO:0000281
definition: The superficial region of a sponge that has no choanocyte chambers.
has_obo_namespace: sponge

Axiom
annotated target: The superficial region of a sponge that has no choanocyte chambers.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ectosome

elastic
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000282
definition: Resilient.
has_obo_namespace: sponge

Axiom
annotated target: Resilient.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: elastic

encrusted substrate
type: Class
subclass of: substrate
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000283
definition: Thin, sheet-like coating of the substrate (Hymedesmia spp.)
has_obo_namespace: sponge

Axiom
annotated target: Thin, sheet-like coating of the substrate (Hymedesmia spp.)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: encrusted substrate

endolithic
type: Class
subclass of: relationship to substrate
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
definition: Occupying cavities in hard substrata (see also EXCAVATING).
id: PORO:0000284
has_obo_namespace: sponge

Axiom
annotated target: Occupying cavities in hard substrata (see also EXCAVATING).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: endolithic

endopinacocyte
type: Class
subclass of: pinacocyte
comment: Cytology
id: PORO:0000285
definition: Pinacocyte lining the inhalant and exhalant canals. In some Demospongiae orders, it has a flagellum (en in figure).
has_obo_namespace: sponge

Axiom
annotated target: Pinacocyte lining the inhalant and exhalant canals. In some Demospongiae orders, it has a flagellum (en in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: endopinacocyte

endopinacoderm
type: Class
subclass of: sponge surface
subclass of: Restriction
  on property: has part
  some values from: endopinacocyte
comment: Cytology
id: PORO:0000286
definition: Surface lined by endopinacocytes.
has_obo_namespace: sponge

Axiom
annotated target: Surface lined by endopinacocytes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: endopinacoderm

endopsammic
type: Class
subclass of: relationship to substrate
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
definition: Main part of body buried in sand (Oceanapia peltata)
id: PORO:0000287
has_obo_namespace: sponge

Axiom
annotated target: Main part of body buried in sand (Oceanapia peltata)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: endopsammic

entrapped spicules
type: Class
subclass of: spicule
subclass of: Class
  union of: calcareous spicule
  union of: siliceous spicule
comment: Calcareous Rigid Skeleton
definition: Calcareous or siliceous spicules that are not part of the primary spicule framework but are progressively enclosed within a solid skeleton during growth
id: PORO:0000288
has_obo_namespace: sponge

Axiom
annotated target: Calcareous or siliceous spicules that are not part of the primary spicule framework but are progressively enclosed within a solid skeleton during growth
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: entrapped spicules

eosinophilic cell
type: Class
subclass of: sponge cell
definition: Cell with inclusions that react positively with eosine.
comment: Cytology
id: PORO:0000289
has_obo_namespace: sponge

Axiom
annotated target: Cell with inclusions that react positively with eosine.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: eosinophilic cell

epirhabd
type: Class
subclass of: desma
id: PORO:0000290
definition: Part of the developed desma formed by the deposition of concentric layers immediately around the crepis.
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Part of the developed desma formed by the deposition of concentric layers immediately around the crepis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: epirhabd

epirhysis
type: Class
subclass of: canal
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: In fossil sponges, canal closed at inner end (cf. aporhysis).
id: PORO:0000291
has_obo_namespace: sponge

Axiom
annotated target: In fossil sponges, canal closed at inner end (cf. aporhysis).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: epirhysis

epitheca
type: Class
subclass of: Restriction
  on property: part of
  some values from: calcareous skeleton
definition: A thin, wrinkled, calcareous layer, different in structure from the normal skeleton, covering the dead basal part of a rigid calcareous skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000292
has_obo_namespace: sponge

Axiom
annotated target: A thin, wrinkled, calcareous layer, different in structure from the normal skeleton, covering the dead basal part of a rigid calcareous skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: epitheca

equal megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of megascleres. See OXEA.
id: PORO:0000293
comment: Spicules of Demospongiae. Editors note: merge with Oxea?
has_related_synonym: equal
has_obo_namespace: sponge

Axiom
annotated target: Adjective referring to the extremities of megascleres. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: equal megasclere

Axiom
annotated target: equal
annotated source: equal megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

erect
type: Class
subclass of: relationship to substrate
definition: General term for having a vertical (away from substrate) growth strategy.
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000294
has_obo_namespace: sponge

Axiom
annotated target: General term for having a vertical (away from substrate) growth strategy.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: erect

euaster
type: Class
subclass of: microsclere
definition: A collective term for astrose microscleres in which the rays radiate from a central point
id: PORO:0000295
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A collective term for astrose microscleres in which the rays radiate from a central point
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: euaster

eurypylous
type: Class
subclass of: choanocyte-lined chamber
comment: Anatomy and Aquiferous System
id: PORO:0000296
definition: Type of choanocyte chamber that connects directly with the inhalant canals through prosopyles and with the excurrent canal through an apopyle. There is no special canal after the apopyle, and several chambers open into the same exhalant canal
has_obo_namespace: sponge

Axiom
annotated target: Type of choanocyte chamber that connects directly with the inhalant canals through prosopyles and with the excurrent canal through an apopyle. There is no special canal after the apopyle, and several chambers open into the same exhalant canal
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: eurypylous

excavating
type: Class
definition: Living in galleries or cavities bored into limestone or other calcareous materials (species of Cliona, Thoosa, Aka)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000297
has_related_synonym: boring
has_related_synonym: burrowing
has_related_synonym: perforating
has_obo_namespace: sponge

Axiom
annotated target: Living in galleries or cavities bored into limestone or other calcareous materials (species of Cliona, Thoosa, Aka)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: excavating

exhalant canal
type: Class
subclass of: canal
comment: Anatomy and Aquiferous System
definition: Any canal forming part of the exhalant system, lined by the apopinacoderm.
id: PORO:0000298
has_obo_namespace: sponge

Axiom
annotated target: Any canal forming part of the exhalant system, lined by the apopinacoderm.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: exhalant canal

exhalant system
type: Class
subclass of: anatomical system
comment: Anatomy and Aquiferous System
id: PORO:0000299
definition: Part of the aquiferous system between the apopyle and oscule
has_obo_namespace: sponge

Axiom
annotated target: Part of the aquiferous system between the apopyle and oscule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: exhalant system

exopinacocyte
type: Class
subclass of: pinacocyte
comment: Cytology
definition: Fusiform or T-shaped pinacocyte covering the free surface of a sponge. In exceptional cases, it has a flagellum (Homoscleromorpha) (ex in figure).
id: PORO:0000300
has_obo_namespace: sponge

Axiom
annotated target: Fusiform or T-shaped pinacocyte covering the free surface of a sponge. In exceptional cases, it has a flagellum (Homoscleromorpha) (ex in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: exopinacocyte

exotyle
type: Class
subclass of: style
id: PORO:0000301
comment: Spicules of Demospongiae
definition: Styles or tylostyles with enlarged or omated distal end, projecting from the sponge surface
has_obo_namespace: sponge

Axiom
annotated target: Styles or tylostyles with enlarged or omated distal end, projecting from the sponge surface
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: exotyle

extra-axial skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000302
definition: Structurally distinct skeleton arising from or surrounding an axial region
has_obo_namespace: sponge

Axiom
annotated target: Structurally distinct skeleton arising from or surrounding an axial region
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: extra-axial skeleton

facial plane
type: Class
subclass of: immaterial anatomical entity
subclass of: Restriction
  on property: part of
  some values from: spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000303
definition: The plane passing through tips of the three rays of a triactine or of a basal triradiate system of a tetractine.
has_obo_namespace: sponge

Axiom
annotated target: The plane passing through tips of the three rays of a triactine or of a basal triradiate system of a tetractine.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: facial plane

fascicular fibrous microstructure
type: Class
subclass of: microstructure
comment: Calcareous Rigid Skeleton
definition: Crystal fibers fanning outward and radiating upward. In the penicillate type (e.g., Ceratoporella), crystal fibers are feebly divergent; in the water-jet type (e.g., Merlia), crystal fibers progressively fan outward around the growth axis; in the trabecular type (cnidarian, unknown in sponges), the crystal fibers are symmetrically arranged around the growth axis and axial fibers are absent
id: PORO:0000304
has_related_synonym: penicillate
has_obo_namespace: sponge
has_related_synonym: trabecular
has_related_synonym: water jet

Axiom
annotated target: Crystal fibers fanning outward and radiating upward. In the penicillate type (e.g., Ceratoporella), crystal fibers are feebly divergent; in the water-jet type (e.g., Merlia), crystal fibers progressively fan outward around the growth axis; in the trabecular type (cnidarian, unknown in sponges), the crystal fibers are symmetrically arranged around the growth axis and axial fibers are absent
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fascicular fibrous microstructure

fiber
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: reticulate skeleton
subclass of: Restriction
  on property: composed_of
  some values from: spongin
definition: A column (strand, thread) of spongin forming a reticulate or dendritic skeleton, with or without indige nous spicules or foreign material.
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000305
has_exact_synonym: fibre
has_obo_namespace: sponge

Axiom
annotated target: A column (strand, thread) of spongin forming a reticulate or dendritic skeleton, with or without indige nous spicules or foreign material.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fiber

fibroreticulate
type: Class
subclass of: morphology
comment: Architecture of the Skeleton of Demospongiae
definition: Forming a net composed of fibers.
id: PORO:0000306
has_obo_namespace: sponge

Axiom
annotated target: Forming a net composed of fibers.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fibroreticulate

fibule
type: Class
subclass of: microsclere
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Microsclere consisting of two bent rays derived from greatly reduced oxyhexaster (in Holascus fibulatus)
id: PORO:0000307
has_obo_namespace: sponge

Axiom
annotated target: Microsclere consisting of two bent rays derived from greatly reduced oxyhexaster (in Holascus fibulatus)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fibule

ficiform
type: Class
subclass of: morphology
definition: Fig shaped (Petrosia ficiformis)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000308
has_related_synonym: pyriform
has_obo_namespace: sponge

Axiom
annotated target: Fig shaped (Petrosia ficiformis)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ficiform

filling (tissue) structure
type: Class
subclass of: secondary calcareous skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000309
definition: Secondary calcareous skeleton that partitions or fills abandoned parts of the skeleton.
has_obo_namespace: sponge

Axiom
annotated target: Secondary calcareous skeleton that partitions or fills abandoned parts of the skeleton.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: filling (tissue) structure

fimbria
type: Class
definition: Narrow structure, similar to an ala, flanking the shaft of an anchorate chela
id: PORO:0000310
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Narrow structure, similar to an ala, flanking the shaft of an anchorate chela
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fimbria

firm
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000311
definition: Solid, requires considerable pressure to deform sponge (species of Chondrosia).
has_obo_namespace: sponge

Axiom
annotated target: Solid, requires considerable pressure to deform sponge (species of Chondrosia).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: firm

fistule
type: Class
subclass of: surface protruberance
definition: A tube-like protuberance projecting from the sponge surface. See also PAPILLA
comment: Anatomy and Aquiferous System
id: PORO:0000312
has_obo_namespace: sponge

Axiom
annotated target: A tube-like protuberance projecting from the sponge surface. See also PAPILLA
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fistule

fistulose
type: Class
equivalent class: Class
  intersection of: anatomical structure
  intersection of: Restriction
    on property: has part
    some values from: fistule
subclass of: anatomical structure
subclass of: Restriction
  on property: has part
  some values from: fistule
definition: Bearing fistules (Coelosphaera hechteli).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000313
has_obo_namespace: sponge

Axiom
annotated target: Bearing fistules (Coelosphaera hechteli).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fistulose

flabellate
type: Class
subclass of: morphology
definition: Fan shaped (Phakellia ventilabrum)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000314
has_obo_namespace: sponge

Axiom
annotated target: Fan shaped (Phakellia ventilabrum)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: flabellate

flagellated chamber
type: Class
comment: Anatomy and Aquiferous System
consider: PORO:0000197
consider: PORO:0000199
id: PORO:0000315
definition: To be rejected. See CHOANOCYTE CHAMBER and CHOANOCHAMBER.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected. See CHOANOCYTE CHAMBER and CHOANOCHAMBER.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: flagellated chamber

flagelliform
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000316
definition: Shaped as a single, very long, erect branch (Raspailia viminalis)
has_obo_namespace: sponge

Axiom
annotated target: Shaped as a single, very long, erect branch (Raspailia viminalis)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: flagelliform

flexuous spicule
type: Class
subclass of: spicule
id: PORO:0000317
definition: Referring to the spicule shape. See OXEA.
comment: Spicules of Demospongiae
has_related_synonym: sinuous
has_obo_namespace: sponge
has_related_synonym: sinuous spicule

Axiom
annotated target: Referring to the spicule shape. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: flexuous spicule

floricome
type: Class
subclass of: discohexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Discohexaster with S-shaped terminal rays that end in a plate provided with teeth or claws
id: PORO:0000318
has_obo_namespace: sponge

Axiom
annotated target: Discohexaster with S-shaped terminal rays that end in a plate provided with teeth or claws
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: floricome

foliaceous
type: Class
subclass of: morphology
definition: In the form of a leaf (Carteriospongia foliacens)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000319
has_related_synonym: foliose
has_obo_namespace: sponge

Axiom
annotated target: In the form of a leaf (Carteriospongia foliacens)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: foliaceous

follicle cell
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: adjacent to
  some values from: oocyte
definition: Cell in a group surrounding an oocyte
id: PORO:0000320
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Cell in a group surrounding an oocyte
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: follicle cell

foramen
type: Class
subclass of: pore
comment: Calcareous Rigid Skeleton
definition: Circular pore in laminae connecting adjoining interlamellar spaces (fo in figure, which also shows cc = choanocyte chamber; ct = crypt tissue; sk = rigid aspicular skeleton; spi = spicule; and ta = tabula).
id: PORO:0000321
has_obo_namespace: sponge

Axiom
annotated target: Circular pore in laminae connecting adjoining interlamellar spaces (fo in figure, which also shows cc = choanocyte chamber; ct = crypt tissue; sk = rigid aspicular skeleton; spi = spicule; and ta = tabula).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: foramen

forceps
type: Class
subclass of: microsclere
definition: A U-shaped microsclere
id: PORO:0000322
comment: Spicules of Demospongiae
has_related_synonym: labis
has_obo_namespace: sponge

Axiom
annotated target: A U-shaped microsclere
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: forceps

fragile
type: Class
subclass of: structural quality
definition: Easily broken.
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000323
has_obo_namespace: sponge

Axiom
annotated target: Easily broken.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fragile

fragmentation
type: Class
subclass of: biological_process
definition: Breakup of a sponge without concomitant formation of special reproductive bodies.
id: PORO:0000324
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Breakup of a sponge without concomitant formation of special reproductive bodies.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fragmentation

free actine
type: Class
subclass of: actine ray
definition: A ray that projects through the external or the atrial surface.
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000325
has_obo_namespace: sponge

Axiom
annotated target: A ray that projects through the external or the atrial surface.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: free actine

friable
type: Class
subclass of: structural quality
definition: Easily broken, delicate, brittle.
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000326
has_obo_namespace: sponge

Axiom
annotated target: Easily broken, delicate, brittle.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: friable

fuchsinophilic cell
type: Class
subclass of: sponge cell
definition: Cell with inclusions that react positively with acid fuchsin.
comment: Cytology
id: PORO:0000327
has_obo_namespace: sponge

Axiom
annotated target: Cell with inclusions that react positively with acid fuchsin.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fuchsinophilic cell

fusiform spicule
type: Class
subclass of: monaxon
id: PORO:0000328
definition: Shape of a monactin spicule, tapering regularly toward a point. See OXEA.
comment: Spicules of Demospongiae. Editors note: merge with oxea?
has_obo_namespace: sponge

Axiom
annotated target: Shape of a monactin spicule, tapering regularly toward a point. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: fusiform spicule

gastralia
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: part of
    some values from: exhalant canal
subclass of: spicule
subclass of: Restriction
  on property: part of
  some values from: exhalant canal
definition: All spicules that line the main exhalant cavity. See AUTOGASTRALIA, HYPOGASTRALIA
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000329
has_obo_namespace: sponge

Axiom
annotated target: All spicules that line the main exhalant cavity. See AUTOGASTRALIA, HYPOGASTRALIA
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: gastralia

gemmule
type: Class
subclass of: reproductive body
subclass of: Restriction
  on property: composed_of
  some values from: archaeocyte
definition: A resistant asexual reproductive body, composed of a mass of archaeocytes charged with reserves and enclosed in a noncellular protective envelope or coat
id: PORO:0000330
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: A resistant asexual reproductive body, composed of a mass of archaeocytes charged with reserves and enclosed in a noncellular protective envelope or coat
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: gemmule

globoferous cell
type: Class
subclass of: sponge cell
definition: Cell with a single large globule, a reduced cytoplasm, and a small conical nucleus (Clathriidae)
comment: Cytology
id: PORO:0000331
has_obo_namespace: sponge

Axiom
annotated target: Cell with a single large globule, a reduced cytoplasm, and a small conical nucleus (Clathriidae)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: globoferous cell

globular
type: Class
subclass of: morphology
definition: Ball shaped, spherical (Tethya aurantium)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000332
has_obo_namespace: sponge

Axiom
annotated target: Ball shaped, spherical (Tethya aurantium)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: globular

glutinous
type: Class
subclass of: quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000333
definition: Sticky (Reniera mucosa).
has_obo_namespace: sponge

Axiom
annotated target: Sticky (Reniera mucosa).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: glutinous

glycocyte
type: Class
subclass of: sponge cell
definition: Cell with conspicuous dictyosomes, characterized by the presence of glycogen rosettes and osmiophilic inclusions. Also known as gray cell
comment: Cytology
id: PORO:0000334
has_related_synonym: gray cell
has_obo_namespace: sponge

Axiom
annotated target: Cell with conspicuous dictyosomes, characterized by the presence of glycogen rosettes and osmiophilic inclusions. Also known as gray cell
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: glycocyte

graphicome
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with long, thin, parallel branches forming terminal brushes
id: PORO:0000335
has_obo_namespace: sponge
has_exact_synonym: graphihexaster

Axiom
annotated target: Hexaster with long, thin, parallel branches forming terminal brushes
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: graphicome

halichondrioid skeleton
type: Class
subclass of: confused skeleton
comment: Architecture of the Skeleton of Demospongiae
definition: Confused skeleton except at the surface; choanosomal skeleton may be in vague tracts
id: PORO:0000336
has_obo_namespace: sponge

Axiom
annotated target: Confused skeleton except at the surface; choanosomal skeleton may be in vague tracts
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: halichondrioid skeleton

hard
type: Class
subclass of: structural quality
definition: Firm consistency, unyielding to pressure (most lithis tids, species of Petrosia).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000337
has_obo_namespace: sponge

Axiom
annotated target: Firm consistency, unyielding to pressure (most lithis tids, species of Petrosia).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hard

hastate
type: Class
subclass of: spicule
id: PORO:0000338
definition: Spicule remaining isodiametric for most of its length, with the point or points tapering abruptly. See OXEA.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Spicule remaining isodiametric for most of its length, with the point or points tapering abruptly. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hastate

heloclone
type: Class
subclass of: desma
definition: Desma with elongate and usually sinuous shaft, without branches, possibly with small digitations at the ends; the zygomes are lateral notches. An axial canal is usually found along most of the length of the spicule
id: PORO:0000339
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Desma with elongate and usually sinuous shaft, without branches, possibly with small digitations at the ends; the zygomes are lateral notches. An axial canal is usually found along most of the length of the spicule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: heloclone

hemioxyhexaster
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster in which two opposite rays are longer than the other four; the branched rays are reduced or absent (genus Aphrocallistes)
id: PORO:0000340
has_obo_namespace: sponge

Axiom
annotated target: Hexaster in which two opposite rays are longer than the other four; the branched rays are reduced or absent (genus Aphrocallistes)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hemioxyhexaster

hexactin
type: Class
subclass of: siliceous spicule
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 6
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000341
definition: Siliceous spicule with six unbranched rays perpendicular to one another.
has_related_synonym: hexact
has_obo_namespace: sponge

Axiom
annotated target: Siliceous spicule with six unbranched rays perpendicular to one another.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hexactin

hexadisc
type: Class
subclass of: microhexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Microhexactin with six actins ending in amphidisclike umbels
id: PORO:0000342
has_obo_namespace: sponge

Axiom
annotated target: Microhexactin with six actins ending in amphidisclike umbels
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hexadisc

hexaster
type: Class
subclass of: microsclere
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 6
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Microsclere with six branched rays.
id: PORO:0000343
has_obo_namespace: sponge

Axiom
annotated target: Microsclere with six branched rays.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hexaster

hilum
type: Class
subclass of: groove, pit or depression
definition: A more or less distinct, funnel-shaped depression in the surface of a STERRASTER, situated on one side in ellipsoidal forms; also occurs in ASPIDASTERS in reduced form, resembling an umbilicus.
id: PORO:0000344
comment: Spicules of Demospongiae
has_obo_namespace: sponge
disjoint union of: hilum of sterraster
disjoint union of: hilum of aspidaster

Axiom
annotated target: A more or less distinct, funnel-shaped depression in the surface of a STERRASTER, situated on one side in ellipsoidal forms; also occurs in ASPIDASTERS in reduced form, resembling an umbilicus.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hilum

hispid surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000345
definition: Surface with long and scattered spicular projections (Stelletta spp.)
has_obo_namespace: sponge

Axiom
annotated target: Surface with long and scattered spicular projections (Stelletta spp.)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hispid surface

hispidation
type: Class
subclass of: spicule
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000346
definition: Spicules projecting through the pinacoderm.
has_obo_namespace: sponge

Axiom
annotated target: Spicules projecting through the pinacoderm.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hispidation

homogeneous fiber
type: Class
subclass of: fiber
definition: A fiber without central pith and without conspicuous layers
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000347
has_obo_namespace: sponge

Axiom
annotated target: A fiber without central pith and without conspicuous layers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: homogeneous fiber

honeycombed surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000348
definition: Surface with polygonal pattern of ridges (Verongula gigantea)
has_obo_namespace: sponge

Axiom
annotated target: Surface with polygonal pattern of ridges (Verongula gigantea)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: honeycombed surface

hymedesmioid skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000349
definition: Skeleton of encrusting sponge where monactine megascleres are arranged singly with heads fixed to a basal plate of spongin and points directed outward
has_related_synonym: leptoclathriid
has_related_synonym: leptoclathriid skeleton
has_obo_namespace: sponge

Axiom
annotated target: Skeleton of encrusting sponge where monactine megascleres are arranged singly with heads fixed to a basal plate of spongin and points directed outward
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hymedesmioid skeleton

hypodermalia
type: Class
subclass of: dermalia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Dermalia with one actin protruding inside the body and the other ones tangential to the external surface
id: PORO:0000350
has_obo_namespace: sponge

Axiom
annotated target: Dermalia with one actin protruding inside the body and the other ones tangential to the external surface
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hypodermalia

hypogastralia
type: Class
subclass of: gastralia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Gastralia with one actin protruding inward, the other ones oriented tangentially to the atrium
id: PORO:0000351
has_obo_namespace: sponge

Axiom
annotated target: Gastralia with one actin protruding inward, the other ones oriented tangentially to the atrium
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: hypogastralia

inarticulate skeleton
type: Class
subclass of: choanoskeleton
comment: Calcareous Spicules and Calcareous Spicule Skeleton
definition: Choanoskeleton composed only of the unpaired rays of the subatrial spicules and of one of the rays of the cortical or subcortical spicules. Without specific spicules of the choanoskeleton
id: PORO:0000352
has_obo_namespace: sponge

Axiom
annotated target: Choanoskeleton composed only of the unpaired rays of the subatrial spicules and of one of the rays of the cortical or subcortical spicules. Without specific spicules of the choanoskeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: inarticulate skeleton

incompressible
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
definition: Not easily squeezed.
id: PORO:0000353
has_obo_namespace: sponge

Axiom
annotated target: Not easily squeezed.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: incompressible

infundibuliform
type: Class
subclass of: morphology
definition: Funnel shaped (Callyspongia plicifera)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000354
has_obo_namespace: sponge

Axiom
annotated target: Funnel shaped (Callyspongia plicifera)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: infundibuliform

inhalant canal
type: Class
subclass of: canal
comment: Anatomy and Aquiferous System
definition: Any canal forming part of the inhalant system and lined by the prosopinacoderm.
id: PORO:0000355
has_obo_namespace: sponge

Axiom
annotated target: Any canal forming part of the inhalant system and lined by the prosopinacoderm.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: inhalant canal

inhalant system
type: Class
subclass of: anatomical system
comment: Anatomy and Aquiferous System
id: PORO:0000356
definition: Part of the aquiferous system between ostia and prosopyle.
has_obo_namespace: sponge

Axiom
annotated target: Part of the aquiferous system between ostia and prosopyle.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: inhalant system

intermedia
type: Class
subclass of: parenchymalia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000357
definition: Parenchymalia situated among the principalia or dictyonalia
has_obo_namespace: sponge

Axiom
annotated target: Parenchymalia situated among the principalia or dictyonalia
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: intermedia

interstitial spicule
type: Class
subclass of: choanosomal spicule
comment: Architecture of the Skeleton of Demospongiae
definition: Free choanosomal spicule not included in tracts or fibers, common in subectosomal skeleton
id: PORO:0000358
has_related_synonym: auxiliary spicule
has_obo_namespace: sponge

Axiom
annotated target: Free choanosomal spicule not included in tracts or fibers, common in subectosomal skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: interstitial spicule

intracellular pore
type: Class
comment: Anatomy and Aquiferous System
consider: PORO:0000035
id: PORO:0000359
definition: Term to be rejected. See PORE.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Term to be rejected. See PORE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: intracellular pore

irciniid filament
type: Class
subclass of: Restriction
  on property: composed_of
  some values from: spongin
comment: Architecture of the Skeleton of Demospongiae
definition: Long, slender (0.5-15 urn thick) spongin element, terminally knobbed; intertwined or free in the sponge body
id: PORO:0000360
has_obo_namespace: sponge

Axiom
annotated target: Long, slender (0.5-15 urn thick) spongin element, terminally knobbed; intertwined or free in the sponge body
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: irciniid filament

irregular microstructure
type: Class
subclass of: microstructure
comment: Calcareous Rigid Skeleton
id: PORO:0000361
definition: Structure in which tangled crystal fibers have no preferred orientation (e.g., genus Vaceletia). Shape and nature of the crystal fiber may be diverse
has_exact_synonym: felt microstructure
has_obo_namespace: sponge

Axiom
annotated target: Structure in which tangled crystal fibers have no preferred orientation (e.g., genus Vaceletia). Shape and nature of the crystal fiber may be diverse
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: irregular microstructure

iso-
type: Class
id: PORO:0000362
definition: Prefix meaning equal (generally referring to the ends of a spicule).
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix meaning equal (generally referring to the ends of a spicule).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: iso-

isochela
type: Class
subclass of: chela
definition: A chela with equal ends
id: PORO:0000363
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A chela with equal ends
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: isochela

isodictyal reticulation
type: Class
subclass of: reticulate skeleton
comment: Architecture of the Skeleton of Demospongiae
definition: Isotropic reticulation in which the meshes are triangular and have sides one spicule long
id: PORO:0000364
has_obo_namespace: sponge

Axiom
annotated target: Isotropic reticulation in which the meshes are triangular and have sides one spicule long
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: isodictyal reticulation

isotropic reticulation
type: Class
subclass of: reticulate skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000365
definition: Reticulation without differentiation into primary or secondary fibers, tracts, or lines.
has_obo_namespace: sponge

Axiom
annotated target: Reticulation without differentiation into primary or secondary fibers, tracts, or lines.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: isotropic reticulation

lamellate
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000366
definition: Plate-like erect (Phyllospongia lamellosa).
has_obo_namespace: sponge

Axiom
annotated target: Plate-like erect (Phyllospongia lamellosa).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lamellate

lamina
type: Class
subclass of: calcareous plate
comment: Calcareous Rigid Skeleton
definition: Calcareous plate in stromatoporoids, perpendicular to radial skeletal components
id: PORO:0000367
has_obo_namespace: sponge

Axiom
annotated target: Calcareous plate in stromatoporoids, perpendicular to radial skeletal components
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lamina

laminated fiber
type: Class
subclass of: fiber
definition: A fiber in which concentric layers are visible
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000368
has_obo_namespace: sponge
has_exact_synonym: stratified fiber

Axiom
annotated target: A fiber in which concentric layers are visible
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: laminated fiber

latilamina
type: Class
subclass of: calcareous plate
definition: A macroscopic, banded calcareous skeletal plate in stromatoporoids
comment: Calcareous Rigid Skeleton
id: PORO:0000369
has_obo_namespace: sponge

Axiom
annotated target: A macroscopic, banded calcareous skeletal plate in stromatoporoids
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: latilamina

lax (= loose, vague) skeleton
type: Class
subclass of: skeleton
subclass of: Class
  complement of: Restriction
    on property: has part
    some values from: tract
subclass of: Class
  complement of: Restriction
    on property: has part
    some values from: fiber
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000370
definition: Skeleton lacking clear tracts or fibers
has_obo_namespace: sponge

Axiom
annotated target: Skeleton lacking clear tracts or fibers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lax (= loose, vague) skeleton

leuconoid system
type: Class
subclass of: aquiferous system
subclass of: Restriction
  on property: part of
  some values from: leuconoid sponge
comment: Anatomy and Aquiferous System
definition: Aquiferous system in which the choanocytes are restricted to discrete choanocyte chambers, which are dispersed in the mesohyl.
id: PORO:0000371
has_obo_namespace: sponge

Axiom
annotated target: Aquiferous system in which the choanocytes are restricted to discrete choanocyte chambers, which are dispersed in the mesohyl.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: leuconoid system

limp
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000372
definition: Soft to the point of collapsing out of water.
has_obo_namespace: sponge

Axiom
annotated target: Soft to the point of collapsing out of water.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: limp

line of spicules
type: Class
subclass of: arrangement of spicules
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000373
definition: Unispicular tract
has_obo_namespace: sponge

Axiom
annotated target: Unispicular tract
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: line of spicules

linked spicules
type: Class
subclass of: arrangement of spicules
comment: Calcareous Rigid Skeleton
id: PORO:0000374
definition: Spicules that are interlocked by zygosis, without cement
has_obo_namespace: sponge

Axiom
annotated target: Spicules that are interlocked by zygosis, without cement
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: linked spicules

lipo-
type: Class
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000375
definition: Prefix meaning without.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix meaning without.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lipo-

lipostomous surface
type: Class
subclass of: sponge surface
definition: Condition of a surface in which oscula and ostia are inconspicuous (in old descriptions).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000376
has_obo_namespace: sponge

Axiom
annotated target: Condition of a surface in which oscula and ostia are inconspicuous (in old descriptions).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lipostomous surface

lithistid skeleton
type: Class
subclass of: skeleton
subclass of: Restriction
  on property: composed_of
  some values from: desma
comment: Architecture of the Skeleton of Demospongiae
definition: Main skeleton consisting of an interlocked assemblage of desmas
id: PORO:0000377
has_obo_namespace: sponge

Axiom
annotated target: Main skeleton consisting of an interlocked assemblage of desmas
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lithistid skeleton

lobate
type: Class
subclass of: morphology
definition: Having rounded projections.
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000378
has_obo_namespace: sponge

Axiom
annotated target: Having rounded projections.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lobate

lobodigitate
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000379
definition: To be rejected (tautology).
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected (tautology).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lobodigitate

lophocalthrop
type: Class
subclass of: calthrop
definition: Modified calthrop with one (monoloph), three (triloph), or four (tetraloph) rays
id: PORO:0000381
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Modified calthrop with one (monoloph), three (triloph), or four (tetraloph) rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lophocalthrop

lophocome (= lophodiscohexaster)
type: Class
subclass of: discohexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Discohexaster with short, stout main rays and numerous slender secondary rays
id: PORO:0000382
has_obo_namespace: sponge

Axiom
annotated target: Discohexaster with short, stout main rays and numerous slender secondary rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lophocome (= lophodiscohexaster)

lychnisc
type: Class
subclass of: hexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexactin with a center resembling a perforated octohedron; building block of fused (dictyonal) framework called LYCHNISCA (lower two lychnics shown in optical section).
id: PORO:0000384
has_obo_namespace: sponge

Axiom
annotated target: Hexactin with a center resembling a perforated octohedron; building block of fused (dictyonal) framework called LYCHNISCA (lower two lychnics shown in optical section).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lychnisc

lychnisca
type: Class
subclass of: Restriction
  on property: has part
  some values from: lychnisc
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Dictyonal hexactin framework formed by lychnises
id: PORO:0000385
has_obo_namespace: sponge

Axiom
annotated target: Dictyonal hexactin framework formed by lychnises
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lychnisca

lyssacine
type: Class
subclass of: arrangement of spicules
subclass of: Restriction
  on property: composed_of
  some values from: hexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000386
definition: Spicular framework formed by the juxtaposition and interlacing of elongate rays of hexactins
has_obo_namespace: sponge

Axiom
annotated target: Spicular framework formed by the juxtaposition and interlacing of elongate rays of hexactins
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: lyssacine

mamelon
type: Class
subclass of: Restriction
  on property: part of
  some values from: skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000387
definition: Rounded regular or irregular elevation of the skeleton surface; may or may not show correlation with astrorhizae
has_obo_namespace: sponge

Axiom
annotated target: Rounded regular or irregular elevation of the skeleton surface; may or may not show correlation with astrorhizae
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: mamelon

marginalia
type: Class
subclass of: prostalia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000388
definition: Prostalia that project in a wreath-like arrangement from the oscular margin
has_obo_namespace: sponge

Axiom
annotated target: Prostalia that project in a wreath-like arrangement from the oscular margin
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: marginalia

massive
type: Class
subclass of: morphology
definition: Large, compact structure without definable shape (Spongia officinalis).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000389
has_obo_namespace: sponge

Axiom
annotated target: Large, compact structure without definable shape (Spongia officinalis).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: massive

megaclone
type: Class
subclass of: desma
definition: Arch-shaped desma with a short crepis. The zygomes vary from oblique lateral facets to tongue- or hand-like terminal expansions
id: PORO:0000390
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Arch-shaped desma with a short crepis. The zygomes vary from oblique lateral facets to tongue- or hand-like terminal expansions
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: megaclone

megarhizoclone
type: Class
subclass of: dicranoclone
definition: Nontuberculate dicranoclone desma
id: PORO:0000391
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Nontuberculate dicranoclone desma
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: megarhizoclone

mesolamella
type: Class
subclass of: acellular anatomical structure
comment: Cytology
id: PORO:0000393
definition: Sheet of collagen separating the choanochambers of hexactinellids.
has_obo_namespace: sponge

Axiom
annotated target: Sheet of collagen separating the choanochambers of hexactinellids.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: mesolamella

mesotriaene
type: Class
subclass of: triaene
definition: A triaene in which the rhabd is extended beyond the cladome
id: PORO:0000394
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene in which the rhabd is extended beyond the cladome
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: mesotriaene

mesotrider
type: Class
subclass of: tetraclone
id: PORO:0000395
comment: Spicule Types of "Lithistids"
definition: Tetraclone with a mesotriaene crepis.
has_obo_namespace: sponge

Axiom
annotated target: Tetraclone with a mesotriaene crepis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: mesotrider

metaster
type: Class
subclass of: microsclere
definition: A microsclere with a twisted shaft no longer than the spines; intermediate between plesiaster and spi raster
id: PORO:0000396
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A microsclere with a twisted shaft no longer than the spines; intermediate between plesiaster and spi raster
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: metaster

micro-
type: Class
id: PORO:0000397
definition: Prefix used for naming microscleres that are similar in shape to megascleres (e.g., microxea, microstyle).
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix used for naming microscleres that are similar in shape to megascleres (e.g., microxea, microstyle).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: micro-

microanchor
type: Class
subclass of: Restriction
  on property: part of
  some values from: tetractine
definition: A small tetractine anchor (described only from the atrial skeleton).
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000398
has_obo_namespace: sponge

Axiom
annotated target: A small tetractine anchor (described only from the atrial skeleton).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microanchor

microcionid
type: Class
subclass of: arrangement of spicules
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000399
definition: Structure of microcionid sponges in which spicules project from an elevation of the basal plate of spongin
has_obo_namespace: sponge

Axiom
annotated target: Structure of microcionid sponges in which spicules project from an elevation of the basal plate of spongin
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microcionid

microdiactin spicule
type: Class
subclass of: diactine
definition: A small diactine spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000400
has_obo_namespace: sponge

Axiom
annotated target: A small diactine spicule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microdiactin spicule

microgranular cell
type: Class
subclass of: sponge cell
definition: A cell with cytoplasm filled with small dense granules
comment: Cytology
id: PORO:0000401
has_obo_namespace: sponge

Axiom
annotated target: A cell with cytoplasm filled with small dense granules
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microgranular cell

microgranular microstructure
type: Class
subclass of: microstructure
comment: Calcareous Rigid Skeleton
definition: Diverse structure in which small, round elements are scattered
id: PORO:0000402
has_obo_namespace: sponge

Axiom
annotated target: Diverse structure in which small, round elements are scattered
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microgranular microstructure

microhexactin
type: Class
subclass of: microsclere
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexactin microsclere.
id: PORO:0000403
has_obo_namespace: sponge

Axiom
annotated target: Hexactin microsclere.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microhexactin

microholactin
type: Class
subclass of: microsclere
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Large category of microscleres lacking spines and appendages (Monorhaphis)
id: PORO:0000404
has_related_synonym: holactin
has_obo_namespace: sponge

Axiom
annotated target: Large category of microscleres lacking spines and appendages (Monorhaphis)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microholactin

microlamellar microstructure
type: Class
subclass of: microstructure
comment: Calcareous Rigid Skeleton
id: PORO:0000405
definition: Structure in which the crystal fibers are disposed in criss-cross layers, mostly parallel to the surface of the skeleton (e.g., genus Acanthochaetetes)
has_obo_namespace: sponge

Axiom
annotated target: Structure in which the crystal fibers are disposed in criss-cross layers, mostly parallel to the surface of the skeleton (e.g., genus Acanthochaetetes)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microlamellar microstructure

micropyle
type: Class
subclass of: immaterial anatomical entity
subclass of: Restriction
  on property: part of
  some values from: gemmule
definition: Opening in the gemmule coat through which cells leave a hatching gemmule (mp in figure).
id: PORO:0000406
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Opening in the gemmule coat through which cells leave a hatching gemmule (mp in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: micropyle

microrhabd
type: Class
subclass of: microsclere
definition: A general term for a straight, monaxonic microsclere.
id: PORO:0000407
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A general term for a straight, monaxonic microsclere.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microrhabd

microstructure
type: Class
subclass of: anatomical group
subclass of: Restriction
  on property: composed_of
  some values from: crystal
comment: Calcareous Rigid Skeleton
id: PORO:0000409
definition: The arrangement of crystals that form the skeletal components, as seen without special preparations.
has_obo_namespace: sponge

Axiom
annotated target: The arrangement of crystals that form the skeletal components, as seen without special preparations.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microstructure

microsymbiont
type: Class
subclass of: anatomical structure
subclass of: Class
  union of: multi-cellular organism
  union of: cell
comment: Cytology
id: PORO:0000410
definition: Prokaryotic or more rarely eukaryotic microorganism living inside a sponge. May be unicellular or multicellular filamentous, with or without pigments, and may occur intra- or intercellularly
has_obo_namespace: sponge

Axiom
annotated target: Prokaryotic or more rarely eukaryotic microorganism living inside a sponge. May be unicellular or multicellular filamentous, with or without pigments, and may occur intra- or intercellularly
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: microsymbiont

monaene
type: Class
equivalent class: Class
  intersection of: tetractine
  intersection of: Restriction
    on property: has part
    on class: clad
    qualified cardinality: 1
subclass of: tetractine
subclass of: Restriction
  on property: variant of
  some values from: triaene
subclass of: Restriction
  on property: has part
  on class: clad
  qualified cardinality: 1
id: PORO:0000411
definition: Reduced triaene with only one clad
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Reduced triaene with only one clad
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: monaene

monaxon
type: Class
subclass of: megasclere
definition: Linear, nonradiate spicule, or a spicule type not having more than two rays along one axis.
id: PORO:0000412
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Linear, nonradiate spicule, or a spicule type not having more than two rays along one axis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: monaxon

mucronate megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the nipple-like point of a megasclere. See OXEA.
id: PORO:0000413
comment: Spicules of Demospongiae
has_related_synonym: mucronate
has_obo_namespace: sponge

Axiom
annotated target: mucronate
annotated source: mucronate megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: Adjective referring to the nipple-like point of a megasclere. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: mucronate megasclere

multispicular fiber
type: Class
subclass of: fiber
subclass of: Restriction
  on property: has part
  on class: spicule
  min qualified cardinality: 6
comment: Architecture of the Skeleton of Demospongiae
definition: Fiber or tract composed of six or more spicules adjacent to one another.
id: PORO:0000414
has_broad_synonym: multispicular fiber tract
has_related_synonym: plurispicular
has_related_synonym: polyserial
has_related_synonym: polyspicular
has_obo_namespace: sponge

Axiom
annotated target: Fiber or tract composed of six or more spicules adjacent to one another.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: multispicular fiber

needle-like biradiate
type: Class
subclass of: diactine
definition: A diactine with a hole at one end
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000415
has_obo_namespace: sponge

Axiom
annotated target: A diactine with a hole at one end
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: needle-like biradiate

node
type: Class
subclass of: Restriction
  on property: has part
  some values from: spongin
comment: Architecture of the Skeleton of Demospongiae
definition: Junction of spicule tips cemented by spongin.
id: PORO:0000416
has_obo_namespace: sponge

Axiom
annotated target: Junction of spicule tips cemented by spongin.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: node

nurse cell
type: Class
subclass of: sponge cell
subclass of: Restriction
  on property: part of
  some values from: reproductive system
definition: Cells that are incorporated in developing oocytes to provide nutrient material for further growth
id: PORO:0000417
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Cells that are incorporated in developing oocytes to provide nutrient material for further growth
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: nurse cell

octactin
type: Class
subclass of: spicule
subclass of: Restriction
  on property: composed_of
  on class: spicule ray
  qualified cardinality: 8
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000418
definition: Spicule with eight rays, generally six in one plane, the other two perpendicular to them.
has_obo_namespace: sponge

Axiom
annotated target: Spicule with eight rays, generally six in one plane, the other two perpendicular to them.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: octactin

octaster
type: Class
subclass of: microsclere
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Octactin microsclere with branched rays.
id: PORO:0000419
has_obo_namespace: sponge

Axiom
annotated target: Octactin microsclere with branched rays.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: octaster

olynthus stage
type: Class
subclass of: life cycle stage
definition: Earliest developmental stage with a functional aquiferous system, with a single choanocyte chamber opening directly into the osculum; typical of some calcareous sponges
id: PORO:0000420
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Earliest developmental stage with a functional aquiferous system, with a single choanocyte chamber opening directly into the osculum; typical of some calcareous sponges
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: olynthus stage

onychaete
type: Class
subclass of: microsclere
definition: A long, thin, finely spined, asymmetric microsclere
id: PORO:0000421
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A long, thin, finely spined, asymmetric microsclere
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: onychaete

onychaster
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with terminal rays ending in four actins that are perpendicular to the rays
id: PORO:0000422
has_obo_namespace: sponge
has_related_synonym: onychohexactin
has_related_synonym: onychohexaster

Axiom
annotated target: Hexaster with terminal rays ending in four actins that are perpendicular to the rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: onychaster

optic axis
type: Class
subclass of: ray axis
subclass of: Restriction
  on property: part of
  some values from: calcareous spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000423
definition: The crystallographic trigonal axis of the calcite spicule.
has_obo_namespace: sponge

Axiom
annotated target: The crystallographic trigonal axis of the calcite spicule.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: optic axis

orthodiactin
type: Class
subclass of: diactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Diactin in which the two rays belong to different axes of a triaxon and form an angle of 90 degrees
id: PORO:0000424
has_obo_namespace: sponge

Axiom
annotated target: Diactin in which the two rays belong to different axes of a triaxon and form an angle of 90 degrees
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: orthodiactin

orthogonal microstructure
type: Class
subclass of: microstructure
comment: Calcareous Rigid Skeleton
definition: Microstructure in which the crystal fibers are in perpendicular and radial orientation relative to a central axis
id: PORO:0000425
has_obo_namespace: sponge

Axiom
annotated target: Microstructure in which the crystal fibers are in perpendicular and radial orientation relative to a central axis
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: orthogonal microstructure

orthotriaene
type: Class
subclass of: triaene
definition: A triaene in which the clads are directed at right angles to the rhabd
id: PORO:0000426
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene in which the clads are directed at right angles to the rhabd
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: orthotriaene

ovate
type: Class
subclass of: morphology
definition: Egg shaped, ellipsoid (Cinachyrella)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000429
has_obo_namespace: sponge

Axiom
annotated target: Egg shaped, ellipsoid (Cinachyrella)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ovate

oviparity
type: Class
subclass of: mode of reproduction
definition: Mode of reproduction in which embryo develops outside the parent sponge.
id: PORO:0000430
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Mode of reproduction in which embryo develops outside the parent sponge.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: oviparity

oxea
type: Class
subclass of: diactine
subclass of: monaxon
disjoint with: microstrongyle
definition: Monaxon (diactinal) spicule pointed at both ends (a-m in figure). Different types are distinguished by shape and tip morphology. Shape may be fusiform (a), angulate (b), centrotylote (c), curved (d), or flexuous (e). Tips may be acerate (f), asymmetrical (g), blunt (h), conical (i), hastate (j), mucronate (k), stepped (1), or symmetrical (m).
id: PORO:0000431
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Monaxon (diactinal) spicule pointed at both ends (a-m in figure). Different types are distinguished by shape and tip morphology. Shape may be fusiform (a), angulate (b), centrotylote (c), curved (d), or flexuous (e). Tips may be acerate (f), asymmetrical (g), blunt (h), conical (i), hastate (j), mucronate (k), stepped (1), or symmetrical (m).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: oxea

oxy-
type: Class
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000432
definition: Prefix referring to radiate spicule types with rays gradually tapering to a point.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Prefix referring to radiate spicule types with rays gradually tapering to a point.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: oxy-

oxyaster
type: Class
subclass of: euaster
definition: An euaster with acerate free rays and a small centrum less than one-third the diameter of the whole spicule)
id: PORO:0000433
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An euaster with acerate free rays and a small centrum less than one-third the diameter of the whole spicule)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: oxyaster

paired actine
type: Class
subclass of: actine ray
subclass of: Restriction
  on property: part of
  some values from: sagittal spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
definition: One or both equivalent rays of a sagittal spicule.
id: PORO:0000434
has_related_synonym: oral
has_related_synonym: oral/oscular ray
has_related_synonym: oscular
has_obo_namespace: sponge

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: oral
annotated source: paired actine
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
annotated target: One or both equivalent rays of a sagittal spicule.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: paired actine

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: oscular
annotated source: paired actine
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

palisade
type: Class
subclass of: arrangement of spicules
subclass of: Restriction
  on property: composed_of
  some values from: ectosomal spicule
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000435
definition: Perpendicular arrangement of ectosomal spicules, with points directed outward
has_obo_namespace: sponge

Axiom
annotated target: Perpendicular arrangement of ectosomal spicules, with points directed outward
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: palisade

palmate
type: Class
subclass of: morphology
definition: Hand shaped (Isodictya palmata)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000436
has_obo_namespace: sponge

Axiom
annotated target: Hand shaped (Isodictya palmata)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: palmate

palmate chela
type: Class
subclass of: chela
definition: An iso- or anisochela in which the lateral alae coalesce with the shaft over their entire length, and the single, median, anterior ala (one at each end) stands free and widens distally
id: PORO:0000437
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An iso- or anisochela in which the lateral alae coalesce with the shaft over their entire length, and the single, median, anterior ala (one at each end) stands free and widens distally
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: palmate chela

palmodigitate
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000438
definition: To be rejected (tautology).
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected (tautology).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: palmodigitate

papilla
type: Class
subclass of: surface protruberance
comment: Anatomy and Aquiferous System
definition: Nipple-like protuberance projecting from the sponge surface and bearing either ostia, oscula, or both.
id: PORO:0000439
has_related_synonym: aquiferous papilla
has_obo_namespace: sponge

Axiom
annotated target: Nipple-like protuberance projecting from the sponge surface and bearing either ostia, oscula, or both.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: papilla

papillate surface
type: Class
equivalent class: Class
  intersection of: sponge surface
  intersection of: Restriction
    on property: has part
    some values from: papilla
subclass of: sponge surface
subclass of: Restriction
  on property: has part
  some values from: papilla
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000440
definition: Surface bearing papillae (Polymastia spp.)
has_obo_namespace: sponge

Axiom
annotated target: Surface bearing papillae (Polymastia spp.)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: papillate surface

pappocome
type: Class
subclass of: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Graphicome-like spicule with diverging terminal rays
id: PORO:0000441
has_obo_namespace: sponge

Axiom
annotated target: Graphicome-like spicule with diverging terminal rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pappocome

parasagittal spicule
type: Class
subclass of: spicule
definition: Bilaterally symmetrical triactine or tetractine with unequal actines, having equal angles (120 degrees) between the basal rays when projected into a plane perpendicular to the optic axis.
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000442
has_related_synonym: secondary sagittal spicule
has_obo_namespace: sponge

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: secondary sagittal spicule
annotated source: parasagittal spicule
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
annotated target: Bilaterally symmetrical triactine or tetractine with unequal actines, having equal angles (120 degrees) between the basal rays when projected into a plane perpendicular to the optic axis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: parasagittal spicule

paratangential skeleton
type: Class
subclass of: arrangement of spicules
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
definition: Arrangement of ectosomal spicules intermediate between the palisade and tangential type
id: PORO:0000443
has_obo_namespace: sponge

Axiom
annotated target: Arrangement of ectosomal spicules intermediate between the palisade and tangential type
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: paratangential skeleton

parchment
type: Class
subclass of: ectosomal skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000444
definition: Tangential ectosomal skeleton in which the megascleres are arranged in a tight feltwork
has_obo_namespace: sponge

Axiom
annotated target: Tangential ectosomal skeleton in which the megascleres are arranged in a tight feltwork
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: parchment

parenchymalia
type: Class
subclass of: arrangement of spicules
subclass of: Restriction
  on property: part of
  some values from: choanosome
definition: All spicules in the choanosome
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000445
has_obo_namespace: sponge

Axiom
annotated target: All spicules in the choanosome
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: parenchymalia

parenchymella
type: Class
subclass of: sponge larva
subclass of: Restriction
  on property: has part
  some values from: envelope of flagellated cells
definition: Larva composed of an envelope of flagellated cells surrounding an internal mass of cells
id: PORO:0000446
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Larva composed of an envelope of flagellated cells surrounding an internal mass of cells
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: parenchymella

paucispicular fiber
type: Class
subclass of: fiber
subclass of: Restriction
  on property: has part
  on class: megasclere
  min qualified cardinality: 2
comment: Architecture of the Skeleton of Demospongiae
definition: Fiber or tract with two to five megascleres adjacent to one another
id: PORO:0000447
has_broad_synonym: paucispicular fiber tract
has_obo_namespace: sponge

Axiom
annotated target: Fiber or tract with two to five megascleres adjacent to one another
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: paucispicular fiber

pedunculate
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000448
definition: Supported by a short stalk containing choanosome (Aplysina pedunculata)
has_obo_namespace: sponge

Axiom
annotated target: Supported by a short stalk containing choanosome (Aplysina pedunculata)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pedunculate

pentactin
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: has part
    on class: spicule ray
    qualified cardinality: 5
subclass of: spicule
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 5
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Five-rayed spicule.
id: PORO:0000449
has_exact_synonym: pentact
has_obo_namespace: sponge

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: pentact
annotated source: pentactin
annotated property: has_exact_synonym

Axiom
annotated target: Five-rayed spicule.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pentactin

phyllotriaene
type: Class
subclass of: triaene
definition: A triaene with a leaf-shaped cladome.
id: PORO:0000450
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene with a leaf-shaped cladome.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: phyllotriaene

pillar
type: Class
subclass of: Restriction
  on property: part of
  some values from: skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000451
definition: Radial skeletal component, relatively short compared with COLUMN
has_obo_namespace: sponge

Axiom
annotated target: Radial skeletal component, relatively short compared with COLUMN
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pillar

pinnate
type: Class
subclass of: morphology
definition: Feather shaped (Asbestopluma pennatula)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000454
has_obo_namespace: sponge

Axiom
annotated target: Feather shaped (Asbestopluma pennatula)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pinnate

pinule
type: Class
subclass of: spicule
subclass of: Class
  union of: hexactin
  union of: pentactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000455
definition: Pentact or hexact spicule with four basal rays and one perpendicular ray ornamented by obliquely set spines directed distally.
has_obo_namespace: sponge

Axiom
annotated target: Pentact or hexact spicule with four basal rays and one perpendicular ray ornamented by obliquely set spines directed distally.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pinule

pith
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: fiber
comment: Architecture of the Skeleton of Demospongiae
definition: Central area of a fiber made up of more or less diffuse wisps of collagen or of a coarsely granular collagen material. See PITHED FIBER.
id: PORO:0000456
has_obo_namespace: sponge

Axiom
annotated target: Central area of a fiber made up of more or less diffuse wisps of collagen or of a coarsely granular collagen material. See PITHED FIBER.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pith

pithed fiber
type: Class
subclass of: fiber
subclass of: Restriction
  on property: composed_of
  some values from: pith
definition: A fiber in which pith is easily distinguished from the surrounding bark.
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000457
has_obo_namespace: sponge

Axiom
annotated target: A fiber in which pith is easily distinguished from the surrounding bark.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pithed fiber

placochela
type: Class
subclass of: isochela
definition: A special type of isochela with plate-like alae. The alae and the shaft are internally ornamented by radial ridges (genus Guitarra)
id: PORO:0000458
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A special type of isochela with plate-like alae. The alae and the shaft are internally ornamented by radial ridges (genus Guitarra)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: placochela

plagiotriaene
type: Class
subclass of: triaene
definition: A triaene in which the clads are directed forward and form with the rhabd an angle of about 45 degrees, and may be recurved distally
id: PORO:0000459
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene in which the clads are directed forward and form with the rhabd an angle of about 45 degrees, and may be recurved distally
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: plagiotriaene

platy
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000460
definition: Thickly lamellate, usually in horizontal orientation.
has_obo_namespace: sponge

Axiom
annotated target: Thickly lamellate, usually in horizontal orientation.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: platy

plesiaster
type: Class
subclass of: streptaster
definition: A streptaster with a very short shaft (always shorter than the spines)
id: PORO:0000461
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A streptaster with a very short shaft (always shorter than the spines)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: plesiaster

pleuralia
type: Class
subclass of: spicule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000462
definition: Spicules protruding from lateral surface.
has_obo_namespace: sponge

Axiom
annotated target: Spicules protruding from lateral surface.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pleuralia

plumoreticulate skeleton
type: Class
subclass of: skeleton
definition: A type of plumose skeletal construction in which cross-connections occur
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000463
has_obo_namespace: sponge

Axiom
annotated target: A type of plumose skeletal construction in which cross-connections occur
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: plumoreticulate skeleton

plumose skeleton
type: Class
subclass of: skeleton
definition: A type of skeletal construction made of primary fibers or spicule tracts from which skeletal elements radiate obliquely
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000464
has_obo_namespace: sponge

Axiom
annotated target: A type of skeletal construction made of primary fibers or spicule tracts from which skeletal elements radiate obliquely
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: plumose skeleton

pocket cell
type: Class
subclass of: bacteriocyte
comment: Cytology
id: PORO:0000465
definition: Special kind of bacteriocyte that surrounds an area of the intercellular matrix, including microsymbionts
has_obo_namespace: sponge

Axiom
annotated target: Special kind of bacteriocyte that surrounds an area of the intercellular matrix, including microsymbionts
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pocket cell

polymorphic
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
definition: Occurring in different shapes.
id: PORO:0000466
has_obo_namespace: sponge

Axiom
annotated target: Occurring in different shapes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: polymorphic

polytylote megasclere
type: Class
subclass of: megasclere
definition: Megasclere with several annular swelling along its shaft
id: PORO:0000467
comment: Spicules of Demospongiae
has_related_synonym: polytylote
has_obo_namespace: sponge

Axiom
annotated target: polytylote
annotated source: polytylote megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: Megasclere with several annular swelling along its shaft
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: polytylote megasclere

pore groove
type: Class
subclass of: groove, pit or depression
subclass of: Restriction
  on property: part of
  some values from: ectosome
definition: A furrow in the ectosome where the ostia are located
comment: Anatomy and Aquiferous System
id: PORO:0000468
has_obo_namespace: sponge

Axiom
annotated target: A furrow in the ectosome where the ostia are located
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pore groove

pore sieve
type: Class
subclass of: groove, pit or depression
subclass of: Restriction
  on property: part of
  some values from: ectosome
subclass of: Restriction
  on property: has part
  some values from: vestibule
definition: A specialized area of the ectosome with a cluster of ostia and an underlying inhalant cavity called the vestibule
comment: Anatomy and Aquiferous System
id: PORO:0000469
has_related_synonym: chone (uniporal chone
has_related_synonym: cribriporal chone)
has_obo_namespace: sponge
has_related_synonym: crible @fr

Axiom
annotated target: A specialized area of the ectosome with a cluster of ostia and an underlying inhalant cavity called the vestibule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pore sieve

porocalyx
type: Class
subclass of: groove, pit or depression
comment: Anatomy and Aquiferous System
definition: Cup-shaped depressions with pore-sieves, typical of some genera of Tetillidae
id: PORO:0000470
has_obo_namespace: sponge

Axiom
annotated target: Cup-shaped depressions with pore-sieves, typical of some genera of Tetillidae
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: porocalyx

posterior pole
type: Class
subclass of: pole of larva
id: PORO:0000472
definition: Pole opposite to anterior pole when larva is swimming, often without flagella.
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Pole opposite to anterior pole when larva is swimming, often without flagella.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: posterior pole

posticum
type: Class
subclass of: osculum
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Cf. apopore (= osculum); in fossil sponges.
id: PORO:0000473
has_obo_namespace: sponge

Axiom
annotated target: Cf. apopore (= osculum); in fossil sponges.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: posticum

primary fiber
type: Class
subclass of: fiber
definition: An ascending fiber ending at a right angle to the surface
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000474
has_related_synonym: ascending fiber/tract/line
has_related_synonym: longitudinal fiber/tract
has_obo_namespace: sponge

Axiom
annotated target: An ascending fiber ending at a right angle to the surface
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: primary fiber

primary calcareous skeleton
type: Class
subclass of: calcareous skeleton
comment: Calcareous Rigid Skeleton
definition: Initially formed skeletal components
id: PORO:0000475
has_obo_namespace: sponge

Axiom
annotated target: Initially formed skeletal components
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: primary calcareous skeleton

primary spicule
type: Class
subclass of: megasclere
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000476
definition: The major structural megasclere in any particular sponge.
has_obo_namespace: sponge

Axiom
annotated target: The major structural megasclere in any particular sponge.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: primary spicule

primary spicule framework
type: Class
subclass of: arrangement of megascleres
subclass of: Restriction
  on property: composed_of
  some values from: primary spicule
comment: Calcareous Rigid Skeleton
definition: Framework of spicules around which a cement is deposited
id: PORO:0000477
has_obo_namespace: sponge

Axiom
annotated target: Framework of spicules around which a cement is deposited
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: primary spicule framework

principalia
type: Class
subclass of: arrangement of spicules
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000478
definition: Spicules making up main skeletal framework
has_obo_namespace: sponge

Axiom
annotated target: Spicules making up main skeletal framework
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: principalia

prosochete
type: Class
subclass of: inhalant canal
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: In fossil sponges, inhalant canal leading to prosopore.
id: PORO:0000479
has_obo_namespace: sponge

Axiom
annotated target: In fossil sponges, inhalant canal leading to prosopore.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: prosochete

prosodus
type: Class
subclass of: inhalant canal
definition: A small inhalant canal leading to a prosopyle.
comment: Anatomy and Aquiferous System
id: PORO:0000480
has_obo_namespace: sponge

Axiom
annotated target: A small inhalant canal leading to a prosopyle.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: prosodus

prosopinacocyte
type: Class
subclass of: endopinacocyte
subclass of: Restriction
  on property: part of
  some values from: inhalant canal
comment: Cytology
definition: Endopinacocyte lining the inhalant canals.
id: PORO:0000481
has_obo_namespace: sponge

Axiom
annotated target: Endopinacocyte lining the inhalant canals.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: prosopinacocyte

prosopinacoderm
type: Class
subclass of: sponge surface
subclass of: Restriction
  on property: composed_of
  some values from: prosopinacocyte
comment: Cytology
id: PORO:0000482
definition: Surface lined by prosopinacocytes.
has_obo_namespace: sponge

Axiom
annotated target: Surface lined by prosopinacocytes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: prosopinacoderm

prostalia
type: Class
subclass of: arrangement of spicules
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000484
definition: Spicules protruding from a surface
has_obo_namespace: sponge

Axiom
annotated target: Spicules protruding from a surface
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: prostalia

protoclad
type: Class
subclass of: Restriction
  on property: part of
  some values from: actine ray
id: PORO:0000485
comment: Spicules of Demospongiae
definition: The proximal, unbranched portion of a branched ray. See DICHOTRIAENE.
has_obo_namespace: sponge

Axiom
annotated target: The proximal, unbranched portion of a branched ray. See DICHOTRIAENE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: protoclad

protorhabd
type: Class
id: PORO:0000486
comment: Spicules of Demospongiae
definition: The original simple shaft of ornamented monaxons and of triaenes.
has_obo_namespace: sponge

Axiom
annotated target: The original simple shaft of ornamented monaxons and of triaenes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: protorhabd

protriaene
type: Class
subclass of: triaene
definition: A triaene in which the clads are directed or sharply curved forward, away from the rhabd
id: PORO:0000487
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene in which the clads are directed or sharply curved forward, away from the rhabd
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: protriaene

pseudocalyx
type: Class
comment: Calcareous Rigid Skeleton
definition: One of a group of skeletal tubes - closely packed together, mostly hexagonal in shape and containing the live material - that resemble the calices or corallites of cnidarians.
id: PORO:0000488
has_related_synonym: calyx
has_obo_namespace: sponge

Axiom
annotated target: One of a group of skeletal tubes - closely packed together, mostly hexagonal in shape and containing the live material - that resemble the calices or corallites of cnidarians.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pseudocalyx

pseudogemmule
type: Class
subclass of: multicellular anatomical structure
subclass of: Restriction
  on property: part of
  some values from: calcareous skeleton
definition: Accumulation of gemmular archaeocytes (crypt cells, tract cells) in basal cavities of a solid calcareous skeleton
id: PORO:0000489
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Accumulation of gemmular archaeocytes (crypt cells, tract cells) in basal cavities of a solid calcareous skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pseudogemmule

pseudosagittal spicule
type: Class
subclass of: subcortical spicule
subclass of: triactine
definition: A subcortical triactine essentially sagittal, but having unequally long and differently curved rays on each side of the unpaired angle
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000490
has_obo_namespace: sponge

Axiom
annotated target: A subcortical triactine essentially sagittal, but having unequally long and differently curved rays on each side of the unpaired angle
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pseudosagittal spicule

punctate surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000491
definition: Surface appearing dotted because of microscopic pores.
has_obo_namespace: sponge

Axiom
annotated target: Surface appearing dotted because of microscopic pores.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: punctate surface

pycnaster
type: Class
definition: A small euaster in which the rays are merely low conules; to be rejected.
id: PORO:0000492
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: A small euaster in which the rays are merely low conules; to be rejected.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: pycnaster

radiate skeleton
type: Class
subclass of: skeleton
definition: A type of skeleton in which the structural components diverge from a central region toward the sponge surface
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000493
has_obo_namespace: sponge

Axiom
annotated target: A type of skeleton in which the structural components diverge from a central region toward the sponge surface
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: radiate skeleton

raphide
type: Class
subclass of: microsclere
definition: A very thin, hair-like microsclere, often in bundles called trichodragmas
id: PORO:0000494
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A very thin, hair-like microsclere, often in bundles called trichodragmas
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: raphide

reduction body
type: Class
subclass of: multicellular anatomical structure
subclass of: Restriction
  on property: capable_of
  some values from: reproductive process
definition: A multicellular mass resulting from the disorganization of a sponge and presumably capable of reorganizing into a new functional sponge.
id: PORO:0000495
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: A multicellular mass resulting from the disorganization of a sponge and presumably capable of reorganizing into a new functional sponge.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: reduction body

regular spicule
type: Class
subclass of: spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000496
definition: Triactine or tetractine spicule with basal rays of equal length, and with equal angles (120 degrees) between them, when projected into a plane perpendicular to the optic axis
has_obo_namespace: sponge

Axiom
annotated target: Triactine or tetractine spicule with basal rays of equal length, and with equal angles (120 degrees) between them, when projected into a plane perpendicular to the optic axis
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: regular spicule

repent
type: Class
subclass of: relationship to substrate
definition: Growing along or just above the substrate, simple or branching, attaching to the substrate at intervals (Hali clona simulans)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000497
has_obo_namespace: sponge

Axiom
annotated target: Growing along or just above the substrate, simple or branching, attaching to the substrate at intervals (Hali clona simulans)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: repent

resilient
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000498
definition: Resumes original shape after deformation.
has_obo_namespace: sponge

Axiom
annotated target: Resumes original shape after deformation.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: resilient

reticulate skeleton
type: Class
subclass of: skeleton
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000499
definition: Three-dimensional network of fibers, tracts, lines, or single spicules.
has_related_synonym: renieroid skeleton
has_obo_namespace: sponge

Axiom
annotated target: Three-dimensional network of fibers, tracts, lines, or single spicules.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: reticulate skeleton

rhabd
type: Class
subclass of: spicule ray
subclass of: Restriction
  on property: part of
  some values from: triaene
definition: A collective term for a monaxonic megasclere, later applied to the one ray of a triaene that is distinct from the other three, mostly in length (= rhabdome).
id: PORO:0000500
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: rhabdome

Axiom
annotated target: A collective term for a monaxonic megasclere, later applied to the one ray of a triaene that is distinct from the other three, mostly in length (= rhabdome).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhabd

rhabdodiactin
type: Class
subclass of: diactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Diactin in which the two rays are aligned in a single axis.
id: PORO:0000502
has_obo_namespace: sponge

Axiom
annotated target: Diactin in which the two rays are aligned in a single axis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhabdodiactin

rhabdome
type: Class
subclass of: rhabd
id: PORO:0000503
comment: Spicules of Demospongiae
definition: The rhabd of a triaene and of a triaene-derived spicule.
has_obo_namespace: sponge

Axiom
annotated target: The rhabd of a triaene and of a triaene-derived spicule.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhabdome

rhabdostyle
type: Class
subclass of: style
definition: A style with a pronounced basal bend.
id: PORO:0000504
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A style with a pronounced basal bend.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhabdostyle

rhagon stage
type: Class
subclass of: life cycle stage
definition: Earliest functional stage with multiple choanocyte chambers and aquiferous canals, typical for Demospongiae
id: PORO:0000505
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Earliest functional stage with multiple choanocyte chambers and aquiferous canals, typical for Demospongiae
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhagon stage

rhizoclone
type: Class
subclass of: monaxial desma
definition: Nontuberculate irregular monaxial desma, with spiny to root-like zygomes that are usually mainly lateral
id: PORO:0000506
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Nontuberculate irregular monaxial desma, with spiny to root-like zygomes that are usually mainly lateral
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rhizoclone

ribbed surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000507
definition: Surface with series of ridges (Xestospongia muta) ; ridges not necessarily parallel, as in CORRUGATED.
has_obo_namespace: sponge

Axiom
annotated target: Surface with series of ridges (Xestospongia muta) ; ridges not necessarily parallel, as in CORRUGATED.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: ribbed surface

rigid aspicular skeleton
type: Class
subclass of: rigid skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000508
definition: Skeleton that originates from the direct secretion of aspicular elements made up of calcium carbonate; siliceous or calcareous spicules may be secondarily entrapped in the skeleton during the growth process (sk in figure).
has_obo_namespace: sponge

Axiom
annotated target: Skeleton that originates from the direct secretion of aspicular elements made up of calcium carbonate; siliceous or calcareous spicules may be secondarily entrapped in the skeleton during the growth process (sk in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rigid aspicular skeleton

rigid spicular skeleton
type: Class
subclass of: rigid skeleton
definition: A skeleton in which the main framework is first made up of fused or linked spicules that may later be invested by an aspicular cement
comment: Calcareous Rigid Skeleton
id: PORO:0000509
has_obo_namespace: sponge

Axiom
annotated target: A skeleton in which the main framework is first made up of fused or linked spicules that may later be invested by an aspicular cement
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rigid spicular skeleton

rooted
type: Class
subclass of: relationship to substrate
definition: Anchored to or into substrate with root-like processes (Pheronema grayi).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000510
has_obo_namespace: sponge

Axiom
annotated target: Anchored to or into substrate with root-like processes (Pheronema grayi).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rooted

rubbery
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000511
definition: Resilient and tough.
has_obo_namespace: sponge

Axiom
annotated target: Resilient and tough.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rubbery

rugose surface
type: Class
subclass of: sponge surface
definition: Having a rough and ridged surface (Topsentia spp.)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000512
has_obo_namespace: sponge

Axiom
annotated target: Having a rough and ridged surface (Topsentia spp.)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: rugose surface

sagittal spicule
type: Class
subclass of: spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000513
definition: Triactine or tetractine with two equal angles (paired angles) and one dissimilar angle (unpaired angle) at the center, when projected into a plane perpendicular to the optic axis.
has_related_synonym: primary sagittal spicule
has_obo_namespace: sponge

Axiom
annotated target: Triactine or tetractine with two equal angles (paired angles) and one dissimilar angle (unpaired angle) at the center, when projected into a plane perpendicular to the optic axis.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sagittal spicule

Axiom
annotated target: primary sagittal spicule
annotated source: sagittal spicule
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

sanidaster
type: Class
subclass of: microsclere
subclass of: Restriction
  on property: develops_from
  some values from: rhabd
definition: A rhabd-derived, straight microsclere having spines at intervals along the entire length. Spines along the shaft are perpendicular to the axis and may or may not be spirally arranged; those at the ends diverge obliquely (e.g., genera Tribrachium, Disyringa)
id: PORO:0000514
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A rhabd-derived, straight microsclere having spines at intervals along the entire length. Spines along the shaft are perpendicular to the axis and may or may not be spirally arranged; those at the ends diverge obliquely (e.g., genera Tribrachium, Disyringa)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sanidaster

sarule
type: Class
subclass of: sceptrule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000515
definition: Sceptrule with one end swollen and ornamented with distally directed spines
has_obo_namespace: sponge

Axiom
annotated target: Sceptrule with one end swollen and ornamented with distally directed spines
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sarule

scale
type: Class
subclass of: microsclere
comment: Calcareous Spicules and Calcareous Spicule Skeleton
definition: Disc-shaped microsclere forming ectosomal ('dermal') armor (genus Lepidosphera)
id: PORO:0000516
has_obo_namespace: sponge

Axiom
annotated target: Disc-shaped microsclere forming ectosomal ('dermal') armor (genus Lepidosphera)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: scale

scepter
type: Class
subclass of: marginalia
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000517
definition: Uncinate marginalia, with spiny shaft acerated at one end; terminating in four very short actins at the other (Pheronematidae, genus Semperella)
has_obo_namespace: sponge

Axiom
annotated target: Uncinate marginalia, with spiny shaft acerated at one end; terminating in four very short actins at the other (Pheronematidae, genus Semperella)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: scepter

sceptrule
type: Class
subclass of: spicule
definition: A small, prostal monactin spicule exhibiting peculiar secondary developments at one end (order Hexactinosa).
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000518
has_obo_namespace: sponge

Axiom
annotated target: A small, prostal monactin spicule exhibiting peculiar secondary developments at one end (order Hexactinosa).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sceptrule

schizorhysis
type: Class
subclass of: anatomical system
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: In fossil sponges, continuous system of interconected canal spaces (Tretodictyidae).
id: PORO:0000519
has_obo_namespace: sponge

Axiom
annotated target: In fossil sponges, continuous system of interconected canal spaces (Tretodictyidae).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: schizorhysis

sclerodermite
type: Class
subclass of: microstructure
definition: Aggregate of crystals forming a microstructural unit of the calcareous skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000521
has_obo_namespace: sponge

Axiom
annotated target: Aggregate of crystals forming a microstructural unit of the calcareous skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sclerodermite

scopule
type: Class
subclass of: sceptrule
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Fork-like sceptrule with one end branched (leptoscopule, pachyscopule).
id: PORO:0000522
has_obo_namespace: sponge

Axiom
annotated target: Fork-like sceptrule with one end branched (leptoscopule, pachyscopule).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: scopule

secondary fiber
type: Class
subclass of: fiber
comment: Architecture of the Skeleton of Demospongiae
definition: In a reticulate skeleton, a fiber that links the primary fibers.
id: PORO:0000523
has_related_synonym: connective fiber
has_broad_synonym: connective tract
has_related_synonym: fibers
has_related_synonym: lines
has_obo_namespace: sponge

Axiom
annotated target: In a reticulate skeleton, a fiber that links the primary fibers.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: secondary fiber

secondary calcareous skeleton
type: Class
equivalent class: Class
  intersection of: calcareous skeleton
  intersection of: Restriction
    on property: develops_from
    some values from: primary calcareous skeleton
subclass of: calcareous skeleton
subclass of: Restriction
  on property: develops_from
  some values from: primary calcareous skeleton
comment: Calcareous Rigid Skeleton
id: PORO:0000524
definition: Skeletal components formed after the deposition of the primary calcareous skeleton
has_obo_namespace: sponge

Axiom
annotated target: Skeletal components formed after the deposition of the primary calcareous skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: secondary calcareous skeleton

selenaster
type: Class
subclass of: spiraster (= spinispira)
definition: A special type of spiraster approaching the shape of a sterraster (genus Placospongia)
id: PORO:0000525
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A special type of spiraster approaching the shape of a sterraster (genus Placospongia)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: selenaster

sessile
type: Class
subclass of: relationship to substrate
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000526
definition: Permanently attached to substrate.
has_obo_namespace: sponge

Axiom
annotated target: Permanently attached to substrate.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sessile

sieve plate
type: Class
subclass of: plate
comment: Anatomy and Aquiferous System
id: PORO:0000527
definition: Perforated plate that extends over the broad terminal opening of some tubular-shaped Hexactinellida (Euplectella). See "Architecture and Spicules of Hexactinellida"
has_obo_namespace: sponge

Axiom
annotated target: Perforated plate that extends over the broad terminal opening of some tubular-shaped Hexactinellida (Euplectella). See "Architecture and Spicules of Hexactinellida"
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sieve plate

sigma
type: Class
subclass of: microsclere
definition: A microsclere of C or S shape
id: PORO:0000529
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A microsclere of C or S shape
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sigma

sigmaspire
type: Class
subclass of: microsclere
definition: A contorted-sigmoid microspined microsclere (family Tetillidae)
id: PORO:0000530
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A contorted-sigmoid microspined microsclere (family Tetillidae)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sigmaspire

sigmatocome
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with long, S-shaped terminal rays (Dictyaulus)
id: PORO:0000531
has_obo_namespace: sponge

Axiom
annotated target: Hexaster with long, S-shaped terminal rays (Dictyaulus)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sigmatocome

skeleton
type: Class
subclass of: organism subdivision
definition: All structures supporting and protecting the sponge body.
comment: Architecture of the Skeleton of Demospongiae. The skeleton of sponges consists of microscopic calcareous or silicious spicules. The demosponges include 90% of all species of sponges. Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. Where spicules of silica are present, they have a different shape from those in the otherwise similar glass sponges[WP].
id: PORO:0000532
has_obo_namespace: sponge

Axiom
annotated target: All structures supporting and protecting the sponge body.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: skeleton

smooth surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000533
definition: Surface without any projections (Chondrosia reniformis).
has_related_synonym: glabrous
has_obo_namespace: sponge

Axiom
annotated target: Surface without any projections (Chondrosia reniformis).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: smooth surface

soft
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000534
definition: Yielding to pressure, easily torn.
has_obo_namespace: sponge

Axiom
annotated target: Yielding to pressure, easily torn.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: soft

spatuliferous-anchorate chela
type: Class
subclass of: anchorate chela
definition: An anchorate chela (usually isochela) having alae that are completely free from the shaft and that are spatulate or shaped like anchor teeth
id: PORO:0000535
comment: Spicules of Demospongiae
has_related_synonym: ancora spatulifera
has_obo_namespace: sponge

Axiom
annotated target: An anchorate chela (usually isochela) having alae that are completely free from the shaft and that are spatulate or shaped like anchor teeth
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spatuliferous-anchorate chela

spermiocyst
type: Class
subclass of: sponge cell
definition: Modified, encysted spermatozoid transported by a carrier cell to the oocyte
id: PORO:0000536
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Modified, encysted spermatozoid transported by a carrier cell to the oocyte
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spermiocyst

sphaerancora
type: Class
subclass of: isochela
definition: Modified isochela, consisting of two ellipsoid ridged plates intersecting at right angles (genus Melonanchora)
id: PORO:0000537
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Modified isochela, consisting of two ellipsoid ridged plates intersecting at right angles (genus Melonanchora)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sphaerancora

sphaeroclone
type: Class
subclass of: anaxial desma
definition: Anaxial desma in which several ray-like arms extend from one side of a globular centrum that is spiny on the other side
id: PORO:0000538
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Anaxial desma in which several ray-like arms extend from one side of a globular centrum that is spiny on the other side
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sphaeroclone

sphaerohexactin (sphaerohexact)
type: Class
subclass of: hexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexactin with rays ending in spherical knobs
id: PORO:0000539
has_obo_namespace: sponge

Axiom
annotated target: Hexactin with rays ending in spherical knobs
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sphaerohexactin (sphaerohexact)

sphaerohexaster
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Hexaster with terminal rays ending in spherical knobs
id: PORO:0000540
has_obo_namespace: sponge

Axiom
annotated target: Hexaster with terminal rays ending in spherical knobs
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sphaerohexaster

spheraster
type: Class
subclass of: euaster
definition: An euaster with short rays and a thick centrum; the diameter of the centrum (more than one-half the total diameter) exceeds the length of the rays
id: PORO:0000541
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An euaster with short rays and a thick centrum; the diameter of the centrum (more than one-half the total diameter) exceeds the length of the rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spheraster

spheroxyaster
type: Class
subclass of: euaster
definition: Euaster with a discrete centrum that is more than one-third the total diameter
id: PORO:0000542
comment: Spicules of Demospongiae
has_related_synonym: oxyspheraster
has_obo_namespace: sponge

Axiom
annotated target: Euaster with a discrete centrum that is more than one-third the total diameter
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spheroxyaster

spherulitic microstructure
type: Class
subclass of: microstructure
comment: Calcareous Rigid Skeleton
definition: Globular (centric or excentric) arrangement of crystal fibers radiating from a common center (e.g., genus Astrosclerd)
id: PORO:0000543
has_exact_synonym: spheroidal
has_obo_namespace: sponge

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: spheroidal
annotated source: spherulitic microstructure
annotated property: has_exact_synonym

Axiom
annotated target: Globular (centric or excentric) arrangement of crystal fibers radiating from a common center (e.g., genus Astrosclerd)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spherulitic microstructure

spherulous cell
type: Class
subclass of: sponge cell
definition: Cell filled with large round spherules that occupy almost the entire cell body, compressing the cytoplasm into thin sheets (sp in figure).
comment: Cytology
id: PORO:0000544
has_obo_namespace: sponge

Axiom
annotated target: Cell filled with large round spherules that occupy almost the entire cell body, compressing the cytoplasm into thin sheets (sp in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spherulous cell

spiculation
type: Class
subclass of: quality
comment: Architecture of the Skeleton of Demospongiae
definition: General term for spicule complement.
id: PORO:0000545
has_obo_namespace: sponge

Axiom
annotated target: General term for spicule complement.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spiculation

spiculoid spicule
type: Class
subclass of: spicule
definition: A spongin component of the skeleton that has the form of a diactinal, triactinal, or polyactinal spicule
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000547
has_obo_namespace: sponge
has_related_synonym: spongin spicule

Axiom
annotated target: A spongin component of the skeleton that has the form of a diactinal, triactinal, or polyactinal spicule
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spiculoid spicule

spiny surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000548
definition: Surface with scattered, stiff, and sharp spicular or fiber projections (Pleraplysilla spinifera)
has_related_synonym: muricate
has_obo_namespace: sponge

Axiom
annotated target: Surface with scattered, stiff, and sharp spicular or fiber projections (Pleraplysilla spinifera)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spiny surface

spiraster (= spinispira)
type: Class
subclass of: microsclere
id: PORO:0000549
comment: Spicules of Demospongiae
definition: Spiral, rod-shaped microsclere with spines peripherally arranged.
has_related_synonym: spinispira
has_obo_namespace: sponge

Axiom
annotated target: Spiral, rod-shaped microsclere with spines peripherally arranged.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spiraster (= spinispira)

spirodiscohexaster
type: Class
subclass of: discohexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Discohexaster with a bunch of terminal, spirally twisted rays (genus Rhabdodictyum)
id: PORO:0000550
has_obo_namespace: sponge

Axiom
annotated target: Discohexaster with a bunch of terminal, spirally twisted rays (genus Rhabdodictyum)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: spirodiscohexaster

statoblast
type: Class
subclass of: gemmule
id: PORO:0000553
definition: Particular gemmule that lacks a complex spongin coat and is covered externally by megascleres; typical of the freshwater Potamolepidae.
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Particular gemmule that lacks a complex spongin coat and is covered externally by megascleres; typical of the freshwater Potamolepidae.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: statoblast

stauractin
type: Class
subclass of: hexactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000554
definition: Reduced hexactin with four rays all arranged in one plane
has_obo_namespace: sponge

Axiom
annotated target: Reduced hexactin with four rays all arranged in one plane
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: stauractin

stauraster
type: Class
subclass of: hexaster
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000555
definition: Reduced hexaster with four rays all arranged in one plane
has_obo_namespace: sponge

Axiom
annotated target: Reduced hexaster with four rays all arranged in one plane
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: stauraster

stepped megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of a megasclere. See OXEA.
id: PORO:0000556
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: stepped
has_related_synonym: telescoped

Axiom
annotated target: telescoped
annotated source: stepped megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: stepped
annotated source: stepped megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: Adjective referring to the extremities of a megasclere. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: stepped megasclere

sterraster
type: Class
subclass of: microsclere
definition: A spherical or ellipsoidal microsclere in which the numerous rays are fused and end in stellate terminations (e.g., genus Geodia).
id: PORO:0000557
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A spherical or ellipsoidal microsclere in which the numerous rays are fused and end in stellate terminations (e.g., genus Geodia).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sterraster

sterrospheraster
type: Class
definition: Ball-shaped euaster with numerous conical or flattened, often denticulate or tuberculate protuberances; to be rejected. See STERRASTER.
term replaced by: PORO:0000557
id: PORO:0000558
comment: Spicules of Demospongiae
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Ball-shaped euaster with numerous conical or flattened, often denticulate or tuberculate protuberances; to be rejected. See STERRASTER.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sterrospheraster

stipitate
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000559
definition: Supported by a long stalk (Stylocordyla stipitata)
has_obo_namespace: sponge

Axiom
annotated target: Supported by a long stalk (Stylocordyla stipitata)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: stipitate

stoloniferous
type: Class
definition: Condition in which distinct, massive parts of a sponge are interconnected by repent, rope-like structures (Haliclona tubifera).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000560
has_obo_namespace: sponge

Axiom
annotated target: Condition in which distinct, massive parts of a sponge are interconnected by repent, rope-like structures (Haliclona tubifera).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: stoloniferous

stomoblastula stage
type: Class
subclass of: life cycle stage
definition: Developmental stage of amphiblastulas that precedes the reversion stage and is characterized by internal flagella and a large opening through which the eversion occurs
id: PORO:0000561
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Developmental stage of amphiblastulas that precedes the reversion stage and is characterized by internal flagella and a large opening through which the eversion occurs
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: stomoblastula stage

streptaster
type: Class
subclass of: aster
definition: Aster in which the rays proceed from an axis that is usually spiral
id: PORO:0000562
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Aster in which the rays proceed from an axis that is usually spiral
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: streptaster

strobiloplumicome
type: Class
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000563
definition: Plumicome with numerous slender terminal rays arranged in two concentric circles
has_obo_namespace: sponge

Axiom
annotated target: Plumicome with numerous slender terminal rays arranged in two concentric circles
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: strobiloplumicome

strongylaster (= chiaster)
type: Class
subclass of: aster
definition: Aster with free, isodiametric, blunt rays
id: PORO:0000564
comment: Spicules of Demospongiae
has_related_synonym: chiaster
has_obo_namespace: sponge

Axiom
annotated target: Aster with free, isodiametric, blunt rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: strongylaster (= chiaster)

strongyle
type: Class
subclass of: diactine
definition: An isodiametric, diactinal megasclere with rounded ends
id: PORO:0000565
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: An isodiametric, diactinal megasclere with rounded ends
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: strongyle

strongyloxea
type: Class
subclass of: oxea
definition: A fusiform oxea with one end blunt.
id: PORO:0000566
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A fusiform oxea with one end blunt.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: strongyloxea

style
type: Class
subclass of: monaxon
definition: Monaxon spicule with one end pointed, the other (head or base) blunt
id: PORO:0000567
comment: Spicules of Demospongiae. NOTE: wp says megasclere
has_obo_namespace: sponge

Axiom
annotated target: Monaxon spicule with one end pointed, the other (head or base) blunt
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: style

subatrial spicule
type: Class
subclass of: spicule
subclass of: Restriction
  on property: adjacent to
  some values from: atrial skeleton
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000568
definition: Sagittal spicule with paired rays adjacent to the atrial skeleton.
has_obo_namespace: sponge
has_related_synonym: subgastral spicule

Axiom
annotated target: Sagittal spicule with paired rays adjacent to the atrial skeleton.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: subatrial spicule

Axiom
database_cross_reference: http://www.portol.org/thesaurus
annotated target: subgastral spicule
annotated source: subatrial spicule
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

subcortical spicule
type: Class
subclass of: spicule
subclass of: Class
  union of: tetractine
  union of: triactine
definition: A pseudosagittal triactine, with unpaired actine and a shorter paired actine adjacent to the cortex, or a tetractine with basal triradiate system adjacent to the cortex.
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000569
has_obo_namespace: sponge

Axiom
annotated target: A pseudosagittal triactine, with unpaired actine and a shorter paired actine adjacent to the cortex, or a tetractine with basal triradiate system adjacent to the cortex.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: subcortical spicule

subdermal spicule
type: Class
comment: Calcareous Spicules and Calcareous Spicule Skeleton
term replaced by: PORO:0000569
id: PORO:0000570
definition: Term to be rejected. See SUBCORTICAL SPICULE.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Term to be rejected. See SUBCORTICAL SPICULE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: subdermal spicule

subgastral spicule
type: Class
comment: Calcareous Spicules and Calcareous Spicule Skeleton
term replaced by: PORO:0000568
id: PORO:0000571
definition: Term to be rejected. See SUBATRIAL SPICULE.
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: Term to be rejected. See SUBATRIAL SPICULE.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: subgastral spicule

sublithistid skeleton
type: Class
subclass of: skeleton
subclass of: Restriction
  on property: composed_of
  some values from: desma
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000572
definition: Skeleton consisting of a loose assemblage of desmas
has_obo_namespace: sponge

Axiom
annotated target: Skeleton consisting of a loose assemblage of desmas
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sublithistid skeleton

subtylostyle
type: Class
subclass of: tylostyle
id: PORO:0000573
comment: Spicules of Demospongiae
definition: Tylostyle with one end pointed, the other with a slight swelling or knob; the swelling, more or less distinct, may be displaced along the shaft
has_obo_namespace: sponge

Axiom
annotated target: Tylostyle with one end pointed, the other with a slight swelling or knob; the swelling, more or less distinct, may be displaced along the shaft
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: subtylostyle

sulcate
type: Class
subclass of: morphology
definition: Furrowed with longitudinal, or meandering (gyriform), parallel channels (Myrmekioderma styx)
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000574
has_related_synonym: gyriform
has_obo_namespace: sponge

Axiom
annotated target: Furrowed with longitudinal, or meandering (gyriform), parallel channels (Myrmekioderma styx)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sulcate

syconoid
type: Class
subclass of: aquiferous system
comment: Anatomy and Aquiferous System
definition: Aquiferous system with elongated choanocyte chamber containing free distal cones or extending from cortex to atrium.
id: PORO:0000575
has_obo_namespace: sponge

Axiom
annotated target: Aquiferous system with elongated choanocyte chamber containing free distal cones or extending from cortex to atrium.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: syconoid

sylleibid
type: Class
subclass of: aquiferous system
comment: Anatomy and Aquiferous System
definition: Aquiferous system with elongate choanocyte chambers arranged radially around invagination of the atrial cavity (Leucilla uter)
id: PORO:0000576
has_obo_namespace: sponge

Axiom
annotated target: Aquiferous system with elongate choanocyte chambers arranged radially around invagination of the atrial cavity (Leucilla uter)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: sylleibid

symmetrical megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of megascleres. See OXEA.
id: PORO:0000577
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: symmetrica

Axiom
annotated target: Adjective referring to the extremities of megascleres. See OXEA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: symmetrical megasclere

Axiom
annotated target: symmetrica
annotated source: symmetrical megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

synapticule
type: Class
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Bridges composed of siliceous cement joining spicules
id: PORO:0000578
has_obo_namespace: sponge

Axiom
annotated target: Bridges composed of siliceous cement joining spicules
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: synapticule

tabula
type: Class
subclass of: plate
comment: Calcareous Rigid Skeleton
id: PORO:0000579
definition: Plate or floor that partitions the basal part of a skeletal cavity (ta in figure).
has_obo_namespace: sponge

Axiom
annotated target: Plate or floor that partitions the basal part of a skeletal cavity (ta in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tabula

tabulate osculum
type: Class
subclass of: osculum
comment: Calcareous Rigid Skeleton
definition: Osculum in stromatoporoids that has been repeatedly partitioned by secondarily deposited tabulae.
id: PORO:0000580
has_obo_namespace: sponge

Axiom
annotated target: Osculum in stromatoporoids that has been repeatedly partitioned by secondarily deposited tabulae.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tabulate osculum

tangential skeleton
type: Class
subclass of: ectosomal skeleton
comment: Architecture of the Skeleton of Demospongiae
definition: Ectosomal skeleton arranged parallel to the surface (figure shows upper right, view from the top).
id: PORO:0000581
has_obo_namespace: sponge

Axiom
annotated target: Ectosomal skeleton arranged parallel to the surface (figure shows upper right, view from the top).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tangential skeleton

tangential spicule
type: Class
subclass of: spicule
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000582
definition: Spicule arranged parallel to the surface.
has_obo_namespace: sponge

Axiom
annotated target: Spicule arranged parallel to the surface.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tangential spicule

tauactin
type: Class
subclass of: triactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Large, smooth triactin (genus Monorhaphis).
id: PORO:0000583
has_obo_namespace: sponge

Axiom
annotated target: Large, smooth triactin (genus Monorhaphis).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tauactin

tertiary fiber
type: Class
subclass of: fiber
comment: Architecture of the Skeleton of Demospongiae
definition: In a reticulate skeleton, a fiber interconnecting the secondary fibers
id: PORO:0000584
has_obo_namespace: sponge

Axiom
annotated target: In a reticulate skeleton, a fiber interconnecting the secondary fibers
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tertiary fiber

tetraclone
type: Class
subclass of: desma
id: PORO:0000585
comment: Spicule Types of "Lithistids"
definition: Tetraxial desma that does not show a triaenose symmetry; the zygomes are typically terminal.
has_obo_namespace: sponge

Axiom
annotated target: Tetraxial desma that does not show a triaenose symmetry; the zygomes are typically terminal.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tetraclone

tetractin
type: Class
subclass of: tetractine
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 4
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000586
definition: Spicule with four rays in one plane
has_obo_namespace: sponge

Axiom
annotated target: Spicule with four rays in one plane
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tetractin

tetractine
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: has part
    on class: spicule ray
    qualified cardinality: 4
subclass of: spicule
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 4
definition: A spicule with four rays (in figure, sagittal tetractine at the top and regular tetractine at the bottom).
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000587
has_obo_namespace: sponge

Axiom
annotated target: A spicule with four rays (in figure, sagittal tetractine at the top and regular tetractine at the bottom).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tetractine

tetradisc
type: Class
subclass of: microsclere
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Microsclere with four actins ending in amphidisc like umbels
id: PORO:0000588
has_obo_namespace: sponge

Axiom
annotated target: Microsclere with four actins ending in amphidisc like umbels
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tetradisc

tetrapocillum
type: Class
subclass of: isochela
definition: A rare, modified isochela having two small disks both at the extremities and in the middle of a straight shaft; the two in the middle are fused (genus Tetrapocillon)
id: PORO:0000589
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A rare, modified isochela having two small disks both at the extremities and in the middle of a straight shaft; the two in the middle are fused (genus Tetrapocillon)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tetrapocillum

thaumatochela
type: Class
subclass of: anisochela
definition: A rare, minute anisochela with the smaller extremity jar- or slipper-shaped and partly enveloped by four alae issuing from the opposite end and forming an umbrella-like structure (Mycale thaumatochela).
id: PORO:0000590
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A rare, minute anisochela with the smaller extremity jar- or slipper-shaped and partly enveloped by four alae issuing from the opposite end and forming an umbrella-like structure (Mycale thaumatochela).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: thaumatochela

thesocyte
type: Class
subclass of: archaeocyte
subclass of: Restriction
  on property: part of
  some values from: gemmule
comment: Cytology
id: PORO:0000591
definition: Vitelline-rich archaeocyte in a sponge gemmule (th in figure).
has_obo_namespace: sponge

Axiom
annotated target: Vitelline-rich archaeocyte in a sponge gemmule (th in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: thesocyte

thraustoxa
type: Class
subclass of: microsclere
id: PORO:0000592
comment: Spicules of Demospongiae
definition: Toxa-like, smooth to spinose microsclere, double- bent in the middle and often with central swelling (genus Rhabderemia)
has_obo_namespace: sponge

Axiom
annotated target: Toxa-like, smooth to spinose microsclere, double- bent in the middle and often with central swelling (genus Rhabderemia)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: thraustoxa

tignule
type: Class
subclass of: diactin
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Gigantic, isolated diactin (Hyalonema toxeres).
id: PORO:0000593
has_obo_namespace: sponge

Axiom
annotated target: Gigantic, isolated diactin (Hyalonema toxeres).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tignule

tornote
type: Class
subclass of: diactine
definition: A straight, isodiametric, diactinal megasclere with conical or mucronate extremities
id: PORO:0000594
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A straight, isodiametric, diactinal megasclere with conical or mucronate extremities
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tornote

tough
type: Class
subclass of: structural quality
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000595
definition: Resistant to tearing (Ircinia).
has_obo_namespace: sponge

Axiom
annotated target: Resistant to tearing (Ircinia).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tough

toxa
type: Class
subclass of: microsclere
definition: Bow-shaped microsclere
id: PORO:0000596
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Bow-shaped microsclere
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: toxa

trabecular tissue
type: Class
subclass of: portion of tissue
comment: Cytology
id: PORO:0000597
definition: Syncytia in hexactinellids occurring around the choanochambers.
has_obo_namespace: sponge

Axiom
annotated target: Syncytia in hexactinellids occurring around the choanochambers.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trabecular tissue

tract
type: Class
subclass of: arrangement of megascleres
definition: A column of aligned megascleres (figure shows two types of tract).
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000598
has_obo_namespace: sponge

Axiom
annotated target: A column of aligned megascleres (figure shows two types of tract).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tract

triactin
type: Class
subclass of: triactine
comment: Architecture of the Skeleton and Spicules of Hexactinellida
id: PORO:0000599
definition: Spicule with three rays in one plane
has_obo_namespace: sponge

Axiom
annotated target: Spicule with three rays in one plane
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: triactin

triactine
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: has part
    on class: actine ray
    qualified cardinality: 3
subclass of: spicule
subclass of: Restriction
  on property: has part
  on class: actine ray
  qualified cardinality: 3
definition: A spicule with three rays.
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000600
has_obo_namespace: sponge

Axiom
annotated target: A spicule with three rays.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: triactine

triaene
type: Class
subclass of: megasclere
subclass of: tetractine
subclass of: Restriction
  on property: has part
  on class: clad
  qualified cardinality: 3
subclass of: Restriction
  on property: has part
  on class: rhabd
  qualified cardinality: 1
subclass of: Restriction
  on property: has part
  on class: spicule ray
  qualified cardinality: 4
definition: General term for a tetractinal megasclere having one unequal ray (termed rhabd) that is commonly much longer than the other three (termed clads, forming the cladome).
id: PORO:0000601
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: triaene
has_exact_synonym: triaene megasclere

Axiom
annotated target: triaene
annotated source: triaene
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

Axiom
annotated target: General term for a tetractinal megasclere having one unequal ray (termed rhabd) that is commonly much longer than the other three (termed clads, forming the cladome).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: triaene

triaxone
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: has part
    on class: ray axis
    qualified cardinality: 3
subclass of: spicule
subclass of: Restriction
  on property: has part
  on class: ray axis
  qualified cardinality: 3
comment: Architecture of the Skeleton and Spicules of Hexactinellida. WP: Triaxons have three axes; in triods, each axis bears a similar ray; in pentacts, the triaxon has five rays, four of which lie in a single plane; and pinnules are pentacts with large spines on the non-planar ray - Eugenio Andri; Stefania Gerbaudo; Massimiliano Testa (2001).
id: PORO:0000602
definition: Spicule with three axes.
has_obo_namespace: sponge
has_related_synonym: triaxon

Axiom
annotated target: Spicule with three axes.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: triaxone

trichaster
type: Class
subclass of: graphicome
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Graphicome (genus Trichasterina).
id: PORO:0000603
has_obo_namespace: sponge

Axiom
annotated target: Graphicome (genus Trichasterina).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trichaster

trichimella
type: Class
subclass of: sponge larva
definition: Hexactinellid larva, distinguished by median zone with multiflagellated mononucleate cells between anterior and posterior poles; with special larval stauractin skeleton
id: PORO:0000604
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Hexactinellid larva, distinguished by median zone with multiflagellated mononucleate cells between anterior and posterior poles; with special larval stauractin skeleton
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trichimella

trichodragma
type: Class
subclass of: Restriction
  on property: composed_of
  some values from: raphide
definition: A bundle of raphids.
id: PORO:0000605
comment: Spicules of Demospongiae
has_related_synonym: dragma
has_obo_namespace: sponge

Axiom
annotated target: A bundle of raphids.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trichodragma

trichotriaene
type: Class
equivalent class: Class
  intersection of: triaene
  intersection of: Restriction
    on property: has part
    some values from: trifurcate clad
subclass of: triaene
subclass of: Restriction
  on property: has part
  some values from: trifurcate clad
definition: A triaene in which the clads are trifurcate.
id: PORO:0000606
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A triaene in which the clads are trifurcate.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trichotriaene

trichox
type: Class
subclass of: monaxon
comment: Calcareous Spicules and Calcareous Spicule Skeleton
id: PORO:0000607
definition: Thin, hair-like straight monaxon spicules present in general around the osculum or protruding from the cortex.
has_obo_namespace: sponge

Axiom
annotated target: Thin, hair-like straight monaxon spicules present in general around the osculum or protruding from the cortex.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trichox

tridentate chela
type: Class
subclass of: chela
definition: A chela with three free alae. See also ANCHORATE CHELA.
id: PORO:0000608
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A chela with three free alae. See also ANCHORATE CHELA.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tridentate chela

trider
type: Class
subclass of: tetraclone
id: PORO:0000609
comment: Spicule Types of "Lithistids"
definition: Variant of tetraclone, with triaenose symmetry and three similar arms.
has_obo_namespace: sponge

Axiom
annotated target: Variant of tetraclone, with triaenose symmetry and three similar arms.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trider

triod
type: Class
id: PORO:0000610
comment: Spicules of Demospongiae
definition: Triact in which the rays are equal, straight, in one plane, and diverging at an angle of 120 degrees.
has_obo_namespace: sponge

Axiom
annotated target: Triact in which the rays are equal, straight, in one plane, and diverging at an angle of 120 degrees.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: triod

tripod
type: Class
subclass of: triod
definition: A modified triod with rays forming a regular pyramid.
id: PORO:0000611
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A modified triod with rays forming a regular pyramid.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tripod

trophocyte
type: Class
subclass of: nurse cell
comment: Cytology
definition: Nurse cell involved in the initial stages of gemmule and oocyte formation.
id: PORO:0000612
has_obo_namespace: sponge

Axiom
annotated target: Nurse cell involved in the initial stages of gemmule and oocyte formation.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: trophocyte

truncaster
type: Class
subclass of: aster
definition: Aster with crowded, blunt rays (genus Rhabdastrella).
id: PORO:0000613
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Aster with crowded, blunt rays (genus Rhabdastrella).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: truncaster

tuberculate spicule
type: Class
subclass of: spicule
id: PORO:0000614
definition: Spicule ornamented with blunt knobs.
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Spicule ornamented with blunt knobs.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tuberculate spicule

tubular
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000615
definition: Shape of hollow, erect cylinder (Aplysina fistularis)
has_obo_namespace: sponge

Axiom
annotated target: Shape of hollow, erect cylinder (Aplysina fistularis)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tubular

turbinate
type: Class
subclass of: morphology
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000616
definition: Resembling an inverted cone (Cribochalina vasculum)
has_obo_namespace: sponge

Axiom
annotated target: Resembling an inverted cone (Cribochalina vasculum)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: turbinate

tylaster
type: Class
subclass of: aster
definition: Aster with free, microtylote rays
id: PORO:0000617
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Aster with free, microtylote rays
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tylaster

tyle
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: part of
  some values from: spicule
definition: Any rounded swelling or knob in a spicule (c in figure).
id: PORO:0000618
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Any rounded swelling or knob in a spicule (c in figure).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tyle

tylostyle
type: Class
subclass of: style
definition: A style with a tyle (globular swelling) at the base
id: PORO:0000619
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: A style with a tyle (globular swelling) at the base
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tylostyle

tylote
type: Class
subclass of: diactine
definition: Diactinal megasclere with a swelling on each end
id: PORO:0000620
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Diactinal megasclere with a swelling on each end
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: tylote

uncinate
type: Class
subclass of: diactine
comment: Architecture of the Skeleton and Spicules of Hexactinellida
definition: Diactin covered with short spines directed distally (barbule); size classes are designated by macrouncinate, microuncinate
id: PORO:0000621
has_related_synonym: barbule
has_related_synonym: macruncinate
has_related_synonym: micruncinate
has_obo_namespace: sponge

Axiom
annotated target: Diactin covered with short spines directed distally (barbule); size classes are designated by macrouncinate, microuncinate
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: uncinate

unequal megasclere
type: Class
subclass of: megasclere
definition: Adjective referring to the extremities of megascleres. See also ANISO-.
id: PORO:0000622
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: unequal

Axiom
annotated target: Adjective referring to the extremities of megascleres. See also ANISO-.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: unequal megasclere

Axiom
annotated target: unequal
annotated source: unequal megasclere
has_synonym_type: synonyms that refers to the corresponding trait
annotated property: has_related_synonym

unguiferous-anchorate chela
type: Class
subclass of: anchorate chela
definition: An anchorate chela in which the recurved processes are in the form of claws or sickles and are normally connected to the shaft by expansions called falces
id: PORO:0000623
comment: Spicules of Demospongiae
has_obo_namespace: sponge
has_related_synonym: ancora unguifera

Axiom
annotated target: An anchorate chela in which the recurved processes are in the form of claws or sickles and are normally connected to the shaft by expansions called falces
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: unguiferous-anchorate chela

unispicular fiber, tract
type: Class
subclass of: arrangement of megascleres
definition: A single aligned row of megascleres
comment: Architecture of the Skeleton of Demospongiae
id: PORO:0000624
has_obo_namespace: sponge

Axiom
annotated target: A single aligned row of megascleres
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: unispicular fiber, tract

unpaired actine
type: Class
subclass of: actine ray
comment: Calcareous Spicules and Calcareous Spicule Skeleton
definition: In sagittal spicules, the ray of a triactine or of a triradiate basal system of a tetractine lying in the plane of bilateral symmetry.
id: PORO:0000625
has_related_synonym: basal actine (ray)
has_obo_namespace: sponge

Axiom
annotated target: basal actine (ray)
annotated source: unpaired actine
has_synonym_type: synonyms that should no longer be used
annotated property: has_related_synonym

Axiom
annotated target: In sagittal spicules, the ray of a triactine or of a triradiate basal system of a tetractine lying in the plane of bilateral symmetry.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: unpaired actine

vallate
type: Class
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000626
definition: To be rejected (old-fashioned, heraldic term used to describe massive forms).
has_obo_namespace: sponge
deprecated: true

Axiom
annotated target: To be rejected (old-fashioned, heraldic term used to describe massive forms).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: vallate

velvety surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000627
definition: Surface with dense, short spicular projections, feeling soft and smooth to the touch.
has_obo_namespace: sponge

Axiom
annotated target: Surface with dense, short spicular projections, feeling soft and smooth to the touch.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: velvety surface

verrucose surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000628
definition: Warty (genus Tethya)
has_obo_namespace: sponge
has_related_synonym: tuberculate

Axiom
annotated target: Warty (genus Tethya)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: verrucose surface

verticillate
type: Class
subclass of: spicule
id: PORO:0000629
definition: Spicule ornamented by whirls (e.g., genus Agelas)
comment: Spicules of Demospongiae
has_obo_namespace: sponge

Axiom
annotated target: Spicule ornamented by whirls (e.g., genus Agelas)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: verticillate

vesicular
type: Class
subclass of: morphology
definition: Hollow, bladder-like (Inflatella belli).
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000630
has_obo_namespace: sponge

Axiom
annotated target: Hollow, bladder-like (Inflatella belli).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: vesicular

vestibule
type: Class
subclass of: inhalant canal
comment: Anatomy and Aquiferous System
id: PORO:0000631
definition: Subectosomal cavity. An inhalant aquiferous cavity close to the surface (see also PORE SIEVE).
has_obo_namespace: sponge
has_related_synonym: subdermal cavity

Axiom
annotated target: Subectosomal cavity. An inhalant aquiferous cavity close to the surface (see also PORE SIEVE).
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: vestibule

villose surface
type: Class
subclass of: sponge surface
comment: Macroscopical Features: Habit, Surface Characteristics, and Consistency
id: PORO:0000632
definition: Surface shaggy, with dense, long spicular bundles (Rosella villosa)
has_obo_namespace: sponge

Axiom
annotated target: Surface shaggy, with dense, long spicular bundles (Rosella villosa)
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: villose surface

viviparity
type: Class
subclass of: mode of reproduction
definition: Mode of reproduction in which internal fertilization and incubation of the embryo occur inside the parent sponge.
id: PORO:0000633
comment: Reproduction
has_obo_namespace: sponge

Axiom
annotated target: Mode of reproduction in which internal fertilization and incubation of the embryo occur inside the parent sponge.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: viviparity

zygome
type: Class
subclass of: Restriction
  on property: part of
  some values from: desma
subclass of: Restriction
  on property: continuous_with
  some values from: spicule
id: PORO:0000634
definition: Part of a desma that interlocks with another spicule.
comment: Spicule Types of "Lithistids"
has_obo_namespace: sponge

Axiom
annotated target: Part of a desma that interlocks with another spicule.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: zygome

zygosis
type: Class
comment: Calcareous Rigid Skeleton
definition: Mode of junction between siliceous and calcareous tetraradiates characterized by the interlocking of their terminal or lateral expansions; cement, if present, is secondary.
id: PORO:0000635
has_obo_namespace: sponge

Axiom
annotated target: Mode of junction between siliceous and calcareous tetraradiates characterized by the interlocking of their terminal or lateral expansions; cement, if present, is secondary.
database_cross_reference: http://www.portol.org/thesaurus
annotated property: definition
annotated source: zygosis

reproductive body
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: part of
  some values from: reproductive system

rigid skeleton
type: Class
subclass of: skeleton

aster
type: Class
subclass of: spicule
definition: stellate spicule where where 1-6 primary rays undergo terminal branching to form secondary rays (differs from definition used for desmosponges)

collagen fibril
type: Class
subclass of: acellular anatomical structure

sponge surface
type: Class
subclass of: anatomical structure

surface protruberance
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: part of
  some values from: sponge surface

mode of reproduction
type: Class

anatomical axis
type: Class
subclass of: immaterial anatomical entity

ray axis
type: Class
subclass of: anatomical structure

plate
type: Class
subclass of: anatomical structure

ectosomal spicule
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: part of
    some values from: ectosome
subclass of: spicule
subclass of: Restriction
  on property: part of
  some values from: ectosome

pole of larva
type: Class
subclass of: anatomical structure
subclass of: Restriction
  on property: part of
  some values from: larva

flagellated cell
type: Class
equivalent class: Class
  intersection of: cell
  intersection of: Restriction
    on property: has part
    some values from: flagellum
subclass of: sponge cell
subclass of: Restriction
  on property: has part
  some values from: flagellum

chamber
type: Class
subclass of: anatomical structure

life cycle stage
type: Class

groove, pit or depression
type: Class
subclass of: anatomical structure

hilum of sterraster
type: Class
equivalent class: Class
  intersection of: hilum
  intersection of: Restriction
    on property: part of
    some values from: sterraster
subclass of: hilum
subclass of: Restriction
  on property: part of
  some values from: sterraster

hilum of aspidaster
type: Class
equivalent class: Class
  intersection of: hilum
  intersection of: Restriction
    on property: part of
    some values from: aspidaster
subclass of: hilum
subclass of: Restriction
  on property: part of
  some values from: aspidaster

calcareous skeleton
type: Class
subclass of: skeleton

relationship to substrate
type: Class
subclass of: quality

substrate
type: Class
subclass of: acellular anatomical structure

cell component
type: Class
subclass of: material anatomical entity

nucleus
type: Class
subclass of: cell component

sponge larva
type: Class
equivalent class: Class
  intersection of: larva
  intersection of: Restriction
    on property: part of
    some values from: sponge
subclass of: larva
subclass of: Restriction
  on property: part of
  some values from: sponge

structural quality
type: Class
subclass of: quality

gemmule coat
type: Class
subclass of: acellular anatomical structure
subclass of: Restriction
  on property: surrounds
  some values from: gemmule

multicellular anatomical structure
type: Class
subclass of: anatomical structure

envelope of flagellated cells
type: Class
subclass of: multicellular anatomical structure
subclass of: Restriction
  on property: composed_of
  some values from: flagellated cell

crypt cell
type: Class
subclass of: sponge cell

tract cell
type: Class
subclass of: sponge cell

flagellated endopinacocyte
type: Class
equivalent class: Class
  intersection of: endopinacocyte
  intersection of: Restriction
    on property: has part
    some values from: flagellum
subclass of: endopinacocyte
subclass of: flagellated cell
subclass of: Restriction
  on property: has part
  some values from: flagellum

flagellated exopinacocyte
type: Class
equivalent class: Class
  intersection of: exopinacocyte
  intersection of: Restriction
    on property: has part
    some values from: flagellum
subclass of: exopinacocyte
subclass of: flagellated cell
subclass of: Restriction
  on property: has part
  some values from: flagellum

calcareous plate
type: Class
subclass of: plate

choanocyte-lined radial canal
type: Class
subclass of: choanocyte-lined chamber

choanocyte-lined filter chamber
type: Class
subclass of: choanocyte-lined chamber

organism subdivision
type: Class
subclass of: anatomical structure

triaene clad
type: Class
equivalent class: Class
  intersection of: clad
  intersection of: Restriction
    on property: part of
    some values from: triaene
subclass of: cladome
subclass of: Restriction
  on property: part of
  some values from: triaene

bifurcate clad
type: Class
subclass of: clad
disjoint with: trifurcate clad

trifurcate clad
type: Class
subclass of: clad

macramphidisc
type: Class
subclass of: amphidisc

mesamphidisc
type: Class
subclass of: amphidisc

micramphidisc
type: Class
subclass of: amphidisc

monaxial desma
type: Class
subclass of: desma

choanosomal spicule
type: Class
equivalent class: Class
  intersection of: spicule
  intersection of: Restriction
    on property: part of
    some values from: choanosome
subclass of: spicule
subclass of: Restriction
  on property: part of
  some values from: choanosome

microstrongyle
type: Class
subclass of: microsclere
definition: microsclere with both ends blunted[WP]

pinnule
type: Class
subclass of: pentactin
definition: A pentact with large spines on the non-planar ray[WP]

protein
type: Class
subclass of: chemical entity

silicatein
type: Class
subclass of: protein
definition: enzyme which catalyzes the formation of silicate polymers

Axiom
database_cross_reference: http://palaeos.com/metazoa/glossary/glossaryO.html#silicatein
annotated target: enzyme which catalyzes the formation of silicate polymers
annotated property: definition
annotated source: silicatein

silicase
type: Class
subclass of: protein
definition: enzyme in sponges, proposed to be involved in silica restructuring and maintenance. The proposed mechanism involves bound zinc acting as a Lewis acid catalyst to break the silicate ester bond between silicon and oxygen

Axiom
annotated target: enzyme in sponges, proposed to be involved in silica restructuring and maintenance. The proposed mechanism involves bound zinc acting as a Lewis acid catalyst to break the silicate ester bond between silicon and oxygen
database_cross_reference: http://palaeos.com/metazoa/glossary/glossaryO.html#silicase
annotated property: definition
annotated source: silicase

spiculogenesis
type: Class
subclass of: biological_process
subclass of: Restriction
  on property: results in formation of
  some values from: spicule

cavity of canal
type: Class
subclass of: immaterial anatomical entity
subclass of: Restriction
  on property: surrounded by
  some values from: canal

acantho
type: Class
subclass of: spined
definition: has spines; applies only to spicules

acanthostyle
type: Class
equivalent class: Class
  intersection of: style
  intersection of: Restriction
    on property: has part
    some values from: spine
subclass of: style
subclass of: Restriction
  on property: has part
  some values from: spine

spine
type: Class
subclass of: acellular anatomical structure

verticillated acanthostyle
type: Class
subclass of: acanthostyle
comment: Editor's note: logical definition still to be added

reproductive system
type: Class
subclass of: anatomical system
definition: Anatomical system that has as its parts the organs concerned with reproduction.
id: UBERON:0000990
has_alternative_id: UBERON:FBbt_00004857-FMA_7160-MA_0000326-MIAA_0000305-WBbt_0005747-XAO_0000142-ZFA_0000632
has_obo_namespace: uberon

Axiom
annotated target: Anatomical system that has as its parts the organs concerned with reproduction.
database_cross_reference: Wikipedia:Reproductive_system
annotated property: definition
annotated source: reproductive system

larva
type: Class
subclass of: multi-cellular organism
id: UBERON:0002548
definition: a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
has_obo_namespace: sponge

Axiom
database_cross_reference: Wikipedia:Larva
annotated target: a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
annotated property: definition
annotated source: larva